My genre keeps changing but the one that I regularly come back to is exhibitionism.

r/gonewildaudio is really hot though. I sometimes also browse Literotica for erotic audio.

I think we should also focus on communities that can draw comments. Something along the lines of r/AskRedditAfterDark. Communities around erotica, roleplay, confessions etc should also be good for engagement.

Coms that are focused on visual stuff would naturally be low in engagement IMO.