Depends on intention and frequency of artistic output...
If you merely publish NSFW every 2 weeks or so and do SFW most of the time, NG is fine.
If your focus on NSFW, look up image hosting sites that specialize in "smut". ;)
Ideally you should ask some of the NSFW-artists you made contact with in your 6 years on Newgrounds.
THEKEEFMAN
Ngl Furaffinity kinda sucks bc it's a legacy website, if you do plan to use it keep in mind it's gonna be quite rudimentary.