This post is on Beehaw, a Lemmy server that does not really have tankies (fortunately).
Officially the flagship is still lemmy.ml; lemmy.world is actually a relatively recent addition to the network (but grew the quickest).
I joined it when the calckey.social server was less than a month old. I am definitely staying on board for the forseeable future.
I do now follow that account from my firefish.social account.