about that whole twitter situation...

Are there any new up-and-coming places where one ought to namesquat just in case? I do have a Pillowfort account (and if anyone wants an invite, I think I can generate three or so?), and I have heard of Mastodon, though I'm not entirely sure how joining that works. From what I understand you have to pick a server instance based on the reputation and TOS of that specific server? Are there new places? I'm not up to joining TikTok (not that it is new at this point)...