@Ronkjeffries There are a ton of instances out there... Check out instances.mastodon.xyz . The list continues to grow day by day :)
I think part of the problem is generalized vs specialized instances. The general ones have a firehose on the timeline while others that are specialized start looking like echo chambers.
Ideally there will be cross pollination of toots but that requires the web of follows to be build which can be tricky, slow and quite organic.
Server run by the main developers of the project It is not focused on any particular niche interest - everyone is welcome as long as you follow our code of conduct!