Make things outside of your fetish. Depending on how good you are with creating environments, scenery, fantasy/sci-fi settings you could even commission doing art for VNs/indie games. It doesn't have to be desktop wallpaper quality but at least comparable to what you see in that field. Just an idea to toss out there.
Theres a void of quality background images for games that dont look like a 12 year old drew it in half an hour with a 24 color set of colored pencils or shitty free DAZ assets. So it could be a way for some of you to make some side cash.
Hell, if you get really good over a few years and someone notices, could even pull a literal job? Idk just thinking of a helpful suggestion people seem to overlook due to all the fanart/OC stuff out there.