Riley won't top but I'm planning to add top-adjacent stuff with the two of you using toys. I won't lock anything behind Connor's preferences, so if you play as a bottom most of the game that doesn't mean you can't still top if you want to.
The other person with a strict preference is Isaiah, who's top-only. I should add it's entirely possible that as I write I'll change these two to not be so strict with their preferences, but that's the plan right now.