I have a few links you can look at that will help you. I post a lot of YouTube videos on my Author Journey channel that answer these types of questions.

This link will help you learn the basics of where you can publish your books: https://youtu.be/PnkXFp0urjQ

This link will talk a little bit about building an email list and focus on one way you can grow it quickly to help you promote your books: https://youtu.be/ZTwlYzOUpAA

This link will discuss the option of outsourcing content to ghostwriters while writing your own books: https://youtu.be/0bsu9yjrWFc

Since you enjoy writing non-fiction, you might consider studying popular niches and hiring a ghostwriter on upwork.com to write books for you at an affordable rate. You pay a one-time fee and get the rights to the book, then you publish it under your name or a pen name. It's a great way to publish more books while you're in the process of writing your own.

Keep in mind that people enjoy short non-fiction guides. Thirty-fifty pages of information is about the right size for a non-fiction book these days so consider a series of books n one niche covering a specific aspect of the topic you've chosen rather than having a 350 page book on the topic.

We like to devour info, but preferably in bite-sized chunks. Let me know if you have anymore questions that I can help you with.