If you're new to Masto (or are old to it but still figuring it out) and you want to know how to sort out who to follow: One of my best methods is to find a good conversation, see who's saying things there that make sense, /and follow that profile/.
It's a vastly better algo than checking who's following you (assortment of rando space alien cats), soliciting suggestions (though that can work).
It also means that the best way to get followers /is to converse productively/.