@Jinsidraws I personally like meow.social, as their servers are quite good with speed, admins do a good job of keeping it running, lots of furries are on this instance and it is filled with friendly people.
If you are curious to try it out i can invite you to it as currently it is invite only.
For nsfw art, actually difficult. I do consume adult content here on an alt but haven't found so many creators yet that i like.
X sadly still has more content with better quality. If some of the creators there finally moved to mastodon and advertised it that would be great.
@Jinsidraws yep, as long as you spoiler/cw it ofc.