best ig niche ?

Thinking for instagram business
got 3 old instagram pva profile
suggest me what is the best niche for massive followers,
will look after only followers now, and then will convert them into cash

suggest me best niche for ig

In my experience the most catchy method for massive followers was with porn, post content with your aff link somewhere (bio or description) and you'll be good.
*This niche is the most active one, you'll receive tons of comments, likes, pms, interactions, etc if you do it right.

Best Regards,
Xpock.