Lemmy will never have a follow system, they closed the issue on github saying it doesn't fit the vision and would be hard to implement because of the resources it would take (but if someone does it in they would add it), mbin does? Could be wrong haven't used it much due to no ios app. might eventually get an ios app that supports some hacky following list using rss feeds (still going off the github comments, idk how any of this works)