Okay, let's do a straw poll. You need to recommend a Mastodon instance to a new user. You know nothing about them except that they're generally left-leaning. What instance do you recommend to them in good faith, and why?
Please note that I am specifically asking about Mastodon instances.
If you see this after January 3, 2022, please don't respond to or boost it; this is meant to be fairly rapid-response. <3