well, i think it based on users who were last online, because whenever i follow someone from there, and i go on there page, it says last online less than a minute ago, or a minute ago.... ur on my suggested follow ppl now LOL
I'm guessing it's based on users that might share interests with you, or have most of the same followers as you. It might also suggest new users to you as well.
I can only guess but it seems like those that are active at the time or you have engaged in convo with are up there. Like now, itll probably say me for you.
I think its the people who have to maost followers or the most points....
It's based mostly on age and whoever is online at the moment