There isn't one, there are hundreds. Given that you end up on a small fandom wiki, you have no idea where 'the better community' is. You go to your search engine of choice and start clicking random wikis hoping at least one other one has decent info (most are useless).
As a concrete example, Path of Exile moved to https://www.poewiki.net/ (which is a single MediaWiki instance not associated with a larger network). The content is quite good but it took probably 18 months for it to start reliably appearing in google search results.
In many cases, it is not a big deal to just open a few links and figure it out. Fandom's content is usually too crap and incomplete. I have been mostly avoiding fandom and fextralife because of content reasons, and I had no idea of all the drama around them.
As a concrete example, Path of Exile moved to https://www.poewiki.net/ (which is a single MediaWiki instance not associated with a larger network). The content is quite good but it took probably 18 months for it to start reliably appearing in google search results.