I installed Mastodon, which is something like Twitter but federated, which means that everyone can run a server so that there are many servers available, basically like you can choose different email providers. I'm obviously hosting me myself, you can find me here: https://toot.jeena.net/@jeena
But if you want to join you could choose one of the many many servers (you'll be able to talk to anyone on any of those servers): https://joinmastodon.org/#getting-started
It feels like back in the early days of Twitter before bullies and corporations took over, so if you always wondered what the charm with Twitter was in the early days you can get a insight with Mastodon right now ;)
I myself don't plan on opening my server to other people.