Are you interested in joining Mastodon but don't know where the cool instances are? This list is just for you. All of these places are nice and pleasant and don't tolerate bigots and similar kinds of shit.
This is by no means absolutely all of them that exist, just the ones that I know of and what admins have submitted to me.
Because I don't properly know languages other than English at the moment, this list only contains instances that have English as one of their languages in their about pages.
Remember! You don't have to pick one instance and stay there forever. You can be on multiple instances, and you can move to a different instance for whatever reason. :)