Don’t waste time on weird practices like follow/unfollow, but simply manage your list using convenient services. I’ve tried various options and can say that features like instagram recent followers really help. You can see who recently followed you, who unfollowed you, and who doesn’t follow you back at all. This saves a ton of time because manually checking is impossible. For me, this has become a standard tool for keeping my account organized and understanding how people respond to my content.