Check them out, you know you want to. Most of these are sasunarusasu, but there are some other pairings.
Going straight down the list:
Enigma, by Mal_Ice: Madara as a hot, strict, hotly strict English teacher: Sakura as the fascinated ingenue. Obito as a frail, fascinating tragic character who refuses to be tragic. Come into my parlor, said the spider to the fly... but don’t stand so close to me.
https://archiveofourown.org/works/17771648/chapters/41934020
Time to Heal by Lycka: All the Sand Siblings attempting to deal with the horrors of their abusive childhood. Gaara, especially, is fragile and shattered, but after losing his most important person, he’s working hard to pull himself back up. Gaa/Na is the main pairing, but there’s also Kiba/Kankoru, Tema/Saku, and SasuNaru. It’s an adorable story, with very human characters dealing with lifetimes of trauma.
https://archiveofourown.org/works/16521281/chapters/38699132
Something Wicked by Nomme de_Plume: An Uchiha-centric horror story. Nomme de_Plume is a really talented writer, and this story is no exception. There’s plenty of suspense and vague, creepy atmosphere to enrapture you for days.
https://archiveofourown.org/works/16359404/chapters/38282267
Meant to Be, by authorindented ( @narutoandsasukeweregayashell ) Sasuke is a teenage kid who has lost his family, but he’s making an effort to have a happy life. He has two loving mothers, a gorgeous best friend with a mordant wit, and a crush on the only person alive who could possibly be more awkward than Sasuke himself. In addition, he has some creepy guy calling him leaving cryptic messages about things he would rather forget. This story comes in two parts; Part 2 is underway, and it’s... gah. It’s just such a good story, and it’s so well-written. You should definitely read this.
https://archiveofourown.org/works/16670500/chapters/39090841
Bad Bromance, by Medivha: I’m scared to love this fic as much as I do, because it was begun years ago and has just been updated. But, damn the torpedoes; this is SUCH a good story. It features a feminized Naruto, but unlike most stories where Naruto is transformed into Naruko, there’s a lot of intrigue and mystery to this one. Naruto attempting to navigate life in a modern, University AU as a dainty, hot little blonde girl is comedic, but it’s never slapstick, and what does Itachi Uchiha know about this, hmm? It’s well worth the read.
https://archiveofourown.org/works/1890990/chapters/4075071
Problematic Soldier, by Maelstrom_Prince ( @maelstrom-prince ): As a writer, I frankly suck at plot. Maelstrom Prince is a natural at it, though. Imagine Danzou getting hold of the infant 9-tails jinchuuriki and weaponizing him. Now, imagine that he’s taken from the rarefied world of ROOT and placed with a genin team. Imagine that he is tasked with protecting Sasuke Uchiha. Naruto is an interesting, endearing character in this story, as are Sasuke and Sakura. The latest update has made another intense plot twist, and I can’t wait to read more. Bonus: the author includes art in many of the chapters, and they are just as talented at visual arts as they are at writing.
https://archiveofourown.org/works/14522475/chapters/33552783
There are more, I’m sure, but these are some of my hugest favorites that were all updated at once.