where are the fanfic communities now

i've been active in the potter fandom (but a diff ship) from 2009 to around 2014. after which i've jumped from fandom to fandom and am now just getting back.

my question is where are the fanfic communities (especially drarry) now? it used to be livejournal and tumblr and some sites with their own domains, but those places are dead now. i just want to know where the fic fests are being held nowadays lol