CPA Marketing

Hello am new to this CPA Marketing, how do I get right source for email marketing service where people can subscribe to my website through email and I will get paid for it, or if I can get niche so that can work with my request if people submit email then I will get paid for it

What is your niche and what do you offer the people for subscribing your site.

there are a lot of services out there, but as Jason212 asked, what is your niche/ once you have established that then it would be more easier to recommend something