done with tumblr! (nsfw),which niche should i try now?

everyone, i was doing tumblr spamming/automation in adult niche and got some $$. but i think i am done with adult tumblr as tumblr changed a lot of things and people became smarter,i am getting very few leads.that is very pathetic.
can anyone please recommand few niches i should try in tumblr?anyone ?any suggestion will be great to me.

sorry for my bad english. i am not a native english speaker. :)