I think much like Lemmy you just want to find one that fits with your ideals. Check the rules and whatnot and make sure you are willing to comply with them.

I wouldn’t call this a recommendation but personally I went with Fosstodon.

I didn’t really look very hard before selecting one of the first few I came across though.

Here’s a list of servers per topic

https://fedi.garden/fediverse-servers-sorted-by-topic/