Online Marketing + programming is the way to make good coin. You have to be good at the marketing part, the programming part you just have to be good enough to talk to devs and make sure they are on the right path. Checkout the spammers on FFXU, they are all doing SEO, they could care less if people see it or not.
Step 1 - Read every entry here - https://ahrefs.com/blog/
Step 2 - Think of a half decent idea/service to sell. Don't over think it, it does not have to be unique, I much prefer service only. Dealing with products is a PITA.
Step 3 - Rank and bank
If you're really good and can rank for things like "pay day loans" you can easily make $2k - $5k / day