I saw that Psyche had up her favorite fanfics, and decided to do something similar. Instead of my favorite fanfics, it'll be fanfictions I don't want to forger. Some of my favorites are on this list, but it'd be a lot longer if It had all my favorites. So, let us begin this list. As with Psyche, this shall be updated when more fanfics make it on to this list. These are all from FF.net, but eventually, there may be some from the kink meme. And so far, only complete fanfics are on this list.

Manor of Sleeping Tattoos by Twilight Zephyr
The dream is always the same. He follows him deeper and deeper into the manor, even though he knows that it's going to trap him in this nightmare forever. L/Light ; Light centric ; crossover with Fatal Frame
Death Note - Rated: T - English - Supernatural/Romance - Chapters: 8 - Words: 16,520 - L & Light Y. - Complete http://www.fanfiction.net/s/6970733/1/bManor_b_of_bSleeping_b_bTattoos_b

Dying Message by RukawaGF
Shizuo x Izaya. Shizuo x Psyche. Izaya dies and Shizuo, unable to contain his guilt and sorrow, sacrifices everything he has to create Psyche, a robot made to look like and act like Izaya.
Durarara!!/デュラララ!! - Rated: T - English - Angst/Tragedy - Chapters: 18 - Words: 38,797 - Shizuo H. & Izaya O. - Complete http://www.fanfiction.net/s/6315512/1/bDying_b_bMessage_b

SnowBlind by BloodDove01
Harmless and innocent you devil in white.You stole my will without a fight. You filled me with confidence, but you blinded my eyes. You tricked me with visions of paradise. LxL! Yaoi! Twist at end! AU!
Death Note - Rated: T - English - Supernatural/Romance - Chapters: 1 - Words: 901 - L & Light Y. http://www.fanfiction.net/s/7222724/1/bSnowBlind_b

I'm Not Who I Think I Am by Simply Emotional
What happens when Light and Kira are fighting for control of the same body? Self harm becomes a usual part of Light's routine, and suicide weighs heavily on his mind, trying to kill himself before he can kill L. L begins to notice these changes.
Death Note - Rated: M - English - Hurt/Comfort/Horror - Chapters: 27 - Words: 39,904 - Light Y. & L - Complete http://www.fanfiction.net/s/6381475/1/Im_Not_Who_I_Think_I_Am

Shizuo's Smiling Project by lunaryu
At some points, Shizuo is tired of dealing with all of Izaya's shits. So to throw Izaya off his game, once again he does the unexpected. He smiles at him. Shizaya. One-shot.
Durarara!!/ デュラララ!! - Rated: T - English - Humor - Chapters: 1 - Words: 4,670 - Shizuo H. & Izaya O. - Complete http://www.fanfiction.net/s/7436729/1/bShizuos_b_bSmiling_b_bProject_b

Order Made by UnderTheGrave
Sometimes, it is best to let the tears flow. SONGFIC TO 'ORDER MADE' BY RADWIMPS.
Durarara!!/ デュラララ!! - Rated: T - English - Romance/Supernatural - Chapters: 1 - Words: 1,305 - Izaya O. & Shizuo H. - Complete http://www.fanfiction.net/s/7349799/1/bOrder_b_bMade_b

Beautiful Disaster by Dlvvanzor
When it becomes apparent that touching the Death Note isn't the only way to regain memories, L must do the impossible to save the one he loves. But with Mello and Near disappearing and an addictive Death Note... LxL, Light POV. Character death. REWRITE.
Death Note - Rated: M - English - Romance/Tragedy - Chapters: 49 - Words: 126,595 - Light Y. & L - Complete http://www.fanfiction.net/s/5143189/1/bBeautiful_b_bDisaster_b

fake wings by Cage of Summer
Shizuo and Izaya: neither really had a purpose to their lives, except the thrill of the chase, so it seems fitting in a way that their last moments were spent together, in the wreckage of the car that took both of them out.
Durarara!!/デュラララ!! - Rated: M - English - Tragedy/Romance - Chapters: 1 - Words: 2,912 - Izaya O. & Shizuo H. - Complete http://www.fanfiction.net/s/7467914/1/bfake_b_bwings_b

Under The Surface by Caelice
Izaya wakes up in a coffin with nothing but a flashlight and a cell phone. He doesn't know where he is or how much air he has left. All he knows is that he's running out of time and there's only one person who can save him – Heiwajima Shizuo.
Durarara!!/デュラララ!! - Rated: T - English - Suspense/Drama - Chapters: 8 - Words: 24,370 - Izaya O. & Shizuo H. - Complete http://www.fanfiction.net/s/6542994/1/bUnder_b_The_bSurface_b

Corpse Road by Soul Under
"What's your name?" Shizuo questions thoughtfully, and the brunet looks back up at him with a small grin. "Izaya Orihara," he says; pointing towards the opposite end of the cemetery. "My family is buried right over there." ... Dark!fic. AU.
Durarara!!/デュラララ!! - Rated: M - English - Tragedy - Chapters: 1 - Words: 10,533 - Shizuo H. & Izaya O. - Complete http://www.fanfiction.net/s/6517729/1/Corpse_Road

Peace Treaty by piratequeen0405
After centuries of war between humans and demons, a new peace treaty is proposed to put an end to the misery and destruction. It is a marital alliance with Kagome and Sesshoumaru at the center. AU I do not own Inuyasha, Rumiko Takahashi does.
Inuyasha - Rated: M - English - Romance/Drama - Chapters: 57 - Words: 229,170 - Kagome & Sesshomaru - Complete http://www.fanfiction.net/s/3999755/1/bPeace_b_bTreaty_b

Worth It by Naminaya
'I gave up who I was/Everything that made me, me' A onesided Shizaya poem inspired by the fanfic Nai Wata Shi by icywarm
Durarara!!/ デュラララ!! - Rated: K - English - Angst/Romance - Chapters: 1 - Words: 441 - Shizuo H. & Izaya O. - Complete http://www.fanfiction.net/s/7531654/1/Worth_It

Midnight Snow by LeviathanoftheSky
What defines the person? Is it his past? His future? Izaya never thought of his own inevitable death until Psyche came. He also never thought of cutting the ropes that bound him until they almost strangled him. Shizuo/Izaya, Shiki/Izaya, Tsugaru/Psyche
Durarara!!/ デュラララ!! - Rated: M - English - Angst/Drama - Chapters: 28 - Words: 97,373 - Shizuo H. & Izaya O. - Complete http://www.fanfiction.net/s/6462627/1/bMidnight_b_bSnow_b

Precious Devotion by MistressKiko
Izaya is upset upon finding out Shizuo thinks he's cheating on him, and in a fit of anger, goes to do just that. Things don't go as planned.
Durarara!!/ デュラララ!! - Rated: M - English - Drama/Romance - Chapters: 16 - Words: 67,296 - Shizuo H. & Izaya O. - Complete http://www.fanfiction.net/s/6328332/1/bPrecious_b_bDevotion_b

Last Kiss by thirteen-forty-two
You'd be surprised just how far a heartbreak can go...
Durarara!!/ デュラララ!! - Rated: M - English - Tragedy/Romance - Chapters: 1 - Words: 12,460 - Izaya O. & Shizuo H. - Complete http://www.fanfiction.net/s/6515800/1/bLast_b_bKiss_b

Blood like Roses by The Leaf180
Izaya's shoulders began to shake as he sank to his knees, gripping his chest, stained with crimson. The last thing he remembers is a loud silence, accented only by the sharp crescendo of a dying man's laugh that he does not recognize as his own.
Durarara!!/デュラララ!! - Rated: T - English - Angst/Friendship - Chapters: 1 - Words: 2,697 - Izaya O. & Shizuo H. - Complete http://www.fanfiction.net/s/7622176/1/bBlood_b_blike_b_bRoses_b

In Heaven by elbyeol
Shizuo, a very busy creative director, fails to save some time to spend together with Izaya on their first Valentine's Day in their home. Little does Shizuo know, that after that crucial call, Izaya dies, leaving him in burden aftermath...
Durarara!!/ デュラララ!! - Rated: T - English - Angst/Romance - Chapters: 8 - Words: 9,388 - Shizuo H. & Izaya O. - Complete http://www.fanfiction.net/s/7398027/1/In_bHeaven_b

Cell 404 by Nocturnalux
Prison fic in which Shizuo and Izaya share the same cell. Forced to live in such confined close quarters they must cooperate and as a result their relationship gradually changes while being tested to the utmost. Shizuo/Izaya
Durarara!!/デュラララ!! - Rated: M - English - Drama/Romance - Chapters: 207 - Words: 160,207 - Shizuo H. & Izaya O. - Complete http://www.fanfiction.net/s/6900455/1/bCell_b_b404_b

Just Another Day by Trying to Change Yesterday
L meets Light in an alley when he's only 11. Light takes him in and the story of their life unfolds. They start as friends, evolve to brothers, turn into partners, and eventually, they become partners in a differnt way. Fic for icywarm! Enjoy!
Death Note - Rated: K+ - English - Romance/Family - Chapters: 1 - Words: 7,474 - L & Light Y. - Complete http://www.fanfiction.net/s/7724248/1/Just_Another_Day

A Crack in the Wall by Seliphra
Shizuo suddenly becomes aware that he isn't real. Randomness ensues. Crack!fic.
Durarara!!/デュラララ!! - Rated: T - English - Humor/Parody - Chapters: 1 - Words: 1,687 - Shizuo H. - Complete

Blue Blanket by kc creation
When Shizuo was eight years old, he learned about being flawed. When he was fifteen, he learned about being lonely, and at twenty-five, he fell in love for the very first time.
Durarara!!/デュラララ!! - Rated: T - English - Romance/Drama - Chapters: 1 - Words: 5,786 - Shizuo H. & Izaya O. - Complete http://www.fanfiction.net/s/7747931/1/Blue_Blankethttp://www.fanfiction.net/s/7718110/1/A_Crack_in_the_Wall

Wherever You Will Go by caffeinekitty
"You're leaving. Well, then... consider this a parting gift."
Durarara!!/デュラララ!! - Rated: M - English - Angst/Romance - Chapters: 10 - Words: 36,445 - Shizuo H. & Izaya O. - Complete http://www.fanfiction.net/s/7597276/1/Wherever_You_Will_Go

My Autistic Brother by Deunan4eva
At a young age, Nate was misdiagnosed. Mihael wants nothing to do with the boy who screams and bangs his head on the wall. But slowly, through a poetry journal Roger forces him to keep, Mello begins to see that Near may need more help than he lets on...
Death Note - Rated: K+ - English - Angst/Hurt/Comfort - Chapters: 42 - Words: 136,179 - Mello & Near - Complete http://www.fanfiction.net/s/6360605/1/My_Autistic_Brother