I don't think you're going to find what you're looking for. Fujos tend to like adult twinks/femboys, and the rare shotacons are usually lesbians who like shotas because they're "girly" males and hate IRL men. You could try "proship" communities, I suppose.

...To take advantage of the fact that you made this thread, though: I'm an otaku virgin shotacon. I am male and can't draw, but I think I can be pretty interesting when talking to people. I also like literature and art. Would any guys here like to be friends? Im lonely and want someone to consoom story games and cartoons with.