This requires a domain + host and a landing page, almost any landing page will do.
The better your landing page is the better conversion you will have.
In my example I am gonna show you a niche im having fun with at the moment:
Think of something similar!
All I do with this site is to post in facebook groups and have a youtube video up, its not earning much but it works.
This is august earnings for blackops3codes.com and I have maybe posted on facebook once a week and had my youtube video up
If I posted everyday for say 10 minutes total troughout the day I would easily earn this in a single day.
If you want to boost this much further you can buy adverts on facebook and probably earn much more.
You can further boost earnings by combining twitter, facebook, youtube, instagram etc and try to more widely spread your website.
Website/Network I am affiliated with:
Ref link to anyone who are interested:
I hope this gives some inspiration lol, feel free to message me or post below!