One of the 51 Alternatives is affiliate marketing. There is a lot to study if you want to do this. I would start by reading everythingo on Zac Johnson’s website.
There is a lot to be made in affiliate marketing, but you will work really hard to earn it. Yes, you can set up systems to leverage and scale your efforts, but it will take a lot of work to get there.
Probably not worth it, right?
Only if you want to be independent…
(I was reminded of Zac when I read this post on JobMob: Stop Making Other People Rich! Grow Your Own Brand)