Super secret double extra final one: there are other online spaces for communities, beyond Twitter and Twitter clones. There might be an awesome queer speedrunning discord, or welcoming retro tech Matrix, out there for you. Or even IRC!
Reminder: the most Twitter-like experience off Twitter is going to https://t.co/4SwxUM5nPM, signing up, and blaming gremlins if a few weird friends can't follow you/you follow them for inexplicable reasons.
Oh, and another final final last one. If you move to Mastodon, there's probably some way to fund the server you use directly. Like a Patreon or something. Consider it a better deal than a site full of ads.