What are some good ways to monetize twitter traffic?

I'm going to be creating many accounts on twitter all adding friends, the question is, which niche or method will be the quickest and most profitable?

Last time I did this I just had a free newsletter signup with an upselling OTO on the backend. I made a couple hundred bucks in a few days, but I'm wondering what else would be good to monetize twitter.

Any ideas?

do you really think people are going to tell you straight out?

man , do your research,

thats how we make money.

SEARCH for your own.

why not just keep doing what you're doing, scale it up and apply it to other niches while learning?