After the demise of Twitter, I first tried Post.news — which had great branding but failed to get the everything-is-a-tweet model right (comments were 2nd class citizens to posts).
Then I moved to Mastodon, which I enjoy. Mastodon’s biggest issue is the enormous UX hurdle to pick an instance before even signing up, though. That and the lack of a unified view (mentioned in the article) will probably keep it niche. Also lack of quote-tweeting, a deliberate choice.
BlueSky is the first truly worthy successor. It’s better than Twitter in its prime, before it went algorithmic. It allows quote-tweeting but gives the quoted party control over the scenarios that Mastodon was trying to prevent by avoiding the feature entirely.