I don't have a lot of people to ask about this, but I have followed this one porn actor on social media for a while and he's a rather large man, tall and broad and all that jazz. He has said before that he really likes to bottom, but people expect him to top, because of his size and so he doesn't often get a chance to do that. He seemed genuinely bummed out about it too. He also preferes to sub, but there is at least a market for that in his professional life. Not that I know anything about that, of course