I'd really like to recommend something.
So, I was flipping through my bookmarked folder that is endless and somewhere I came across a journal that I was unfamiliar with and I clicked and then one of the first things I saw was this and I ended up in tears and holy shit is it good.
Journey from Platform 9 and 3/4 by
scratchedink Spoilers for DH, basic HP overall spoilers. Tears or at least a wrenching gut are guaranteed.
Shit, I haven't touched HP fic in a longgg time, but man, it was stuff like this that did it for me. That, and you know, the total plausible-ness of Remus and Sirius.