Fediverse

I do a presentation of the Fediverse to my college students and will soon be giving short workshops to organization as well. I realize that a viable, decentralized altenative to Facebook is IMO the biggest missing piece of the puzzle. We need something that offers some kind of central platform for networking, events, groups, etc. For work related stuff I present Nexcloud. Mastodon, Lemmy, Pixelfed and Loops are getting really interesting and working alternative to their counterparts. I believe if we could get a massive movement of people to adopt an FOSS alternative to Facebook, everything else would easily follow. What do you people think, what would you recommend? I haven't tried Friendica yet.