One of the things I did many years ago was start on W3schools. But since then about 30% of the internet runs on a CMS of some sort. Best bet? Learn PHP and WordPress first.
This is the best place to start because you can make money in many different areas (even auto blogging) with this as your base and it has millions of plugins for different things.
Most importantly, you dont need to have any knowledge of coding to use it if you really dont want to.
However, it is best to learn PHP and how to slim down WordPress for fast loading, implement the best seo strategies, implement the best social media strategies, and combine whatever business on site with YouTube.
Whatever you go with, way back when, I made a good $1300 a month solely online with my website, scrapebox, and a couple other tools just selling SEO services. It was lucrative before it became saturated.
Now I just provide these services to the company I work for that pays me chump change.
I am probably not going to have a job soon (the country is going through sone issues) so I may have to get back into online business somehow soon.
Learn YouTube marketing as well. Very lucrative.
Final tip.... Use YouTube events... Places on the first page of google every time. At least until the event date.