@cellomanlove answered: Becoming Neville by Jedi Rita
Ok, so ON THE ONE HAND I'm very grateful to you for reccing this because I loved it. Oh my god, I don't even remember the last fic I read where the characters were so deeply flawed and yet still likeable??? Because Neville is still a pushover and kind of a wimp, and Harry is self-absorbed dumbass with a bad temper, and Snape is horrible human being as always, and even Remus is reckless and way too easily convinced to let kids put themselves in danger. But Neville is also this amazing tragic figure with such potential for heroism, and Harry is this abused and traumatized kid who's just trying to deal, and Snape actually does have other people's best interests at heart he just has deeply fucked up priorities, and Remus has an upbringing that is even more abused and arguably more traumatizing than Harry's. It's all just, ugh. My feels.
On top of that amazing casefic where Neville's investigating the mystery of his parent's catatonia, and whether their doctor is secretly a deatheater, and what Bellatrix Lestrange is up to now. So great.
AND ON THE OTHER HAND I kind of hate you because there is no sequel. My heart weeps for another 50k of Harry and Snape becoming better people in spite of themselves due to close association with Neville and Remus. (Like, this is a gen fic but I am totally shipping it anyway.)
So, thank you for the rec. You monster.