I personally wish people were heading for Mastodon. I especially think that our institutions should operate Mastodon instances on their own, so that an American tech giant can't decide to "cancel" a Danish politician as an example. I mean, I don't agree with anything our far right does on social media, but the concept of a foreign tech giant being able to ban an elected Danish official is still sort of crazy. Anyway, people are going to Threads for the most part.
Note that this is a perspective from my little point of the world. Though some of our major news media have decided to ditch Twitter, as well as closing their posts on Facebook to comments.