Always happy to share good artists and introduce new people to them, glad to contribute.
Despite what the internet would lead you to believe, body type is not directly correlated to being dominant or submissive. Neither does gender, sexual orientation, clothing or anything else on the surface. The type of person you are sexually, your preferences, your kinks, are only going to come out when you sit down and talk to your partner - or viewers - about it. Otherwise, its just folks making assumptions - and generally forcing standard hetero-normative gender roles into non-standard relationships or people. A big, bulky, tough guy can easily be submissive in bed, just as a soft-spoken, short man can be a cold dom. And the idea of a bottom dom would make some dude's brains explode. At the end, its about personality, not looks.
So the answer is, unfortunately, this isn't something that can be "fixed" because its not a personal problem. Its just people having an uneducated perspective of how sexual relations work.
Awfully specific request, would something like Beauty and the Beast Girl be adequate? Its closer to monster girl than eldritch, but if you want one that lives as a human, I imagine it fits regardless.
If you mean having a place where you can post it, I've been running !yaoi@lemmynsfw.com for a little while, although I don't post that many bears and muscular men since I don't follow a lot of artists that create that type of porn.
If you mean having people to post it, well, that's a different matter, I guess. Anyone can contribute, most people just choose not to.
truly living the dream