Does anyone know any sites that specialize in stories containing erotic hypno content? For background, I've been doing a pool of captions called 'Psi-Girls' (hypnohub.net/index.php?page=pool&s=show&id=5438) and after a user responded with a several thousand word story set in the world, I've become genuinely interested in writing stories in the setting too. Like this one: docs.google.com/document/...VrVOdKA/edit?usp=drivesdk

I'm aware the kink aspects significantly limit the audience for this sort of thing, but I don't really want to "sanitize" the setting. I know AO3 has few restrictions on sexual content... is there any audience for this sort of thing?

You are probably looking for this:
mcstories.com

www.literotica.com has a category for mind control stuff, there's mcstories.com and also readonlymind.com.

There's bound to be more but those are the ones I personally browse

If you want to browse mcstories but with searchable tags, you can use this site: www.gregariousfrog.com/svengali/svengali.html