What are the best ways to market self-published books?

I informed my friends about my newly published book through my Facebook profile.

I requested those who liked it to leave positive reviews on Amazon and Goodreads.

To promote my book, I visited a few blogs in my genre, where I shared excerpts, answered queries, and gave out promotional copies.

I actively participate in monthly work-in-progress readings, where authors in my genre showcase their latest projects.

My earnings come not only from book sales but also from each page read on Kindle Unlimited. Moreover, I have consistently earned at least 7...