I decided to list some of my favorite fanfiction - not just for others but for my own reference, in case I lose my bookmarks or forget the names of them.
Sunshine In Winter - A Vincent/Yuffie fanfiction from Final Fantasy VII.
"Yuffie Kisaragi gets into trouble, and her whole life changes when she is maimed. Sentenced to death in a matter of months, the only person she can rely on is Vincent Valentine." Have tissues nearby. I read this in one sitting years ago and sobbed my eyes out, and it's still one of my favorites.
Unspoken -
"Actions speak louder than words, but without a voice, can the words inside you speak louder than those actions. A tale of unexpected friendship, struggle, love, and everything that goes with it." Yes, it's a Sephiroth/Aerith fanfiction with a redemption arc post Meteor. I make no apologies. I know what I'm about, son. (And to be fair, I primarily ship Aerith with...well, everyone else but Seph most of the time, but as far as crack ships go, they're pretty and leave me morbidly curious and I like to see what people do with them.)
Made and Remade the Necklace of Songs - The Hobbit's Thorin/Bilbo story playing on the Soulmates trope.
"In a Middle Earth where dwarves dream of Heartsongs and hobbits carry the name of their fated partner as private Mark, Bilbo Baggins had never been able to properly translate the strange rows of runes inscribed on his wrist. And likewise, Thorin Oakenshield had never imagined he would hear the voice of his Heartsong from a fussy little gentlehobbit." My younger sister introduced this one to me a few years ago, and God help me, I devoured it, started shipping it, and hate that I ship it.
The Road Delivered Us Home - Another Bilbo/Thorin fanfiction, set in an alternate universe.
"In the years since Bilbo left Erebor, he has lost his respectability, gained a nephew, and gotten on with life at Bag End. He'd left aside adventure for the comforts and peace of his little Hobbit hole, and for the love of a child who needed him. Though perhaps, adventures can yet find him." My sister recommended this one to me as well. It's domestic as hell but I adore it.
For better or for worse - Anders/Hawke fanfiction from Dragon Age 2.
"A 'five things' fic, featuring five different times Hawke proposed to Anders. ("Marry me," Hawke says, and Anders can smell the alcohol on his breath.)"Darkness, Cold, Heat - Male Shepard/Tali fanfiction from Mass Effect, taking place during the third game.
"After Leviathan, Tali helps Shepard banish the chill in his soul. NSFW, you've been warned." Look, sometimes a good smut is hard to come by, and every now and then you come across one that's surprisingly decent, in-character, and not too over-the-top.
Picture This - Belle/Gaston fanfiction from Beauty and the Beast.
"AU. Is it possible to write a GastonBelle pairing that's believable and in character? Or have I lost my mind?" Again, another case of, 'I was browsing FanFiction.Net one day, got bored, took a chance on a story that focused on a ship I hate, and jumped in', and was...pleasantly surprised by the results. Mind you, Gaston is a villain and by no means am I singing his praises, but I sure do love stories that take a challenging premise, a ridiculous crack ship, and actually manage to pull something off. (Although I won't lie, I felt like the story truly ended at chapter 24 and didn't need several more chapters past that point, but I digress.)