In some fandoms there are writing communities where people will leave story requests, and if the premise inspires a writer enough one will swing by to compose something for everyone to read. Sometimes writers even request "reverse-prompts" in the sense that they offer to write more or less whatever prompt someone leaves for them, with whatever specified restrictions in-place.
Most of these communities also happen to have a "nothing is off-limits" policy on explicit content, but the stories and prompts don't necessarily have to be explicit at all. It would be fine to say "I'd like to see an edgy male Ishgardian Lalafell WoL" and have someone just create a story and character with that premise. It would also be fine to say "I want a short story on how the original Fray died" or "Sadu x Magnai shipping in Doma" or whatever.
A community like this does exist for FFXIV, but it's pretty dead atm. I'd link but idk if the explicit stuff would be an issue with lodestone policy.
I just want to see if anyone else would be interested in doing something like that. It can be a really fun exercise imo and I kind of miss it.