well... most chars that have top scenes can potentially have bottom scenes in the future and viceversa, hakan is clearly a dom, but even he has a sweet side and could very well let MC lead at some point.
thane has a repeatable scene after the war (in the "good ending" route) , it is a dialogue option, and then he also has a scene for the bathhouse, i wouldn't say you full on dom him, but it... should be good enough?
oh, i'd say axel wants to stay on top more, even if he kinda has his bottom moments as well, in a way, along with a couple of NPCs in quests later on... this game has a bit for everyone, so i'd say to just try to unlock them all, worst case you can skip the dialogue fast. (also good to see a tyrandaddy enjoyer~)