i think some of the main ones you should focus on are a reformer, an explorer, early christian ireland monk, and a roman. don't take this as gospel but they haven't come up for a few years are usually popular!
Early Christan Ireland Monk,
Lord/lady of a medival monastery,
Named religous reformer,
Age of exploration named leader on a voyage,
farmer in the agricultural revoution, and
Named leader involved in the rise of the superpowers.
I think some of these suggestions are likely to come up. I hope this helps. :)