List social networking like mastodon that also available for nsfw

There are several social networking platforms similar to Mastodon that cater to NSFW (not safe for work) content. Here are a few options:

**FurAffinity** - Primarily focused on furry art and communities, but allows adult content as well.
  
**E621** - A community and image board that features artwork and animations, including adult content primarily related to furry art.

**Pixiv** - While it's a Japanese online community for artists, it includes sections for adult content (NSFW) and allows users to share and promote their works.

**Newgrounds** - Known for its art, animations, and games, Newgrounds also has sections for mature and adult content.

**Twitter (X)** - Although not exclusively an adult site, many users share NSFW content on their accounts, and it has become a popular platform for adult creators.

**Subreddits on Reddit** - There are various subreddits dedicated to NSFW content, but be sure to review Reddit’s community guidelines regarding adult content.

**OnlyFans** - This platform allows creators to share exclusive adult content with subscribers. It's not a traditional social network but has social elements.

**Booru Sites** - Such as Gelbooru or Danbooru, which allow users to post and share images, including NSFW art.

When exploring these platforms, always be sure to follow their community guidelines and content policies to ensure compliance with their rules regarding adult content.