Nothing come even close to that, mastodon is just a couple of small niches within tech and some news organizations, you won't find anything near to how Twitter works and you won't find anything even close to being relevant as it is.
I personally think most of the complaints that hacker News writes about Twitter, stem from who you follow.It really depends on who you follow, if you find the right people it's going to be your source for what's going on in anything you're interested in.
And unfortunately Elon doesn't seem to be interested in keeping that, he is just interested in milking every last dollar out of it and the result is the platform fighting against its own users.
Unfortunately he also proved something very dystopian while he's doing this:The network effect is so strong that even if you fight against your users، nothing is going to change.
This article explains it fully: https://stratechery.com/2023/threads-and-the-social-communic...
My comment on it is also relevant here: https://news.ycombinator.com/item?id=36684443