There are a few service providers here on GFY that have in-depth tutorials on "how to make money in porn." They are really quite impressive. I have not rolled through any of them myself, but would love to see someone take one of these tutorials and go step-by-step through them to see how they work out for the average user.
Here's one:
https://www.wp-script.com/how-to-start-porn-site/