It's easy enough to follow a mastodon user, but I while I only tried for a few minutes I wasn't able to figure out how to follow an entire mastodon instance.

@LegendofDragoon do you mean to ask how to follow a whole instance or specific accounts in that instance? For the second, you just search the same way (@ user @ instance) or click their names from the posts that end up on your microblog and add from their profile. For the whole instance, the kbin functionality doesn't have it yet (and the typical fediverse clients i know are optimized for pure microblogging protocols for now, or else I'd recommend client-side solutions)