Thank you for the links. I follow all of them now.

But I think I know what my problem is and it's not what you think.

Mastodon seems to be user centered, but I don't want to follow specific users. I want to be fed with interesting content. So I'd prefer content centered fediverse.

The fediverse I'm looking for should be able to infer my interests and feed me content that is interesting to me as quickly as possible when I don't have any social graph. Because I don't have any relevant social graph. Not on any fediverse, not on twitter, not on Facebook, not on youtube. I just have some interests.