is it me that can't find it or there are no option to ride your opponent if you win, because if you can't it would be odd in my opinion to do dom-ish thing whenyour tag is sub and everyone treats you like one
Not everyone, no. There will be more options with the engine update coming next month, along with more improvements and general more things to do to them in and out of battle, along with them being able to do the same to you in the proceeding months. So you'll eventually~ being able to dom/be used by them in plenty of ways than what there is right now.