Most of the people I've met on here and asked are going with lemmings. That's fine by me, it's cute enough and it works.
Maybe an unpopular opinion but having a name for a Lemmy user is cringe.
What are you gonna ask someone at a party if they're a lemming? They're gonna look at you like wtf are you talking about.
It has big "the narwhal bacons at midnight" vibes.