I just made !nsfw411@lemmynsfw.com with the intention of using it as an organized catalog of communities, categorizing them by type. Feel free to post any communities and the categories they may fall under. The communities also don’t have to be specifically on lemmynsfw.com, they could also be from other lemmy instances or maybe kbin instances.
If anyone wants to help with the categorizing, message me or reply.
I would definitely be willing to help with that. Helping users to find exactly the content they’re looking for will be huge as this place grows. It’ll also help with finding related content people didn’t even know they wanted.