There are many different affiliate programs that enable bloggers to make money. But affiliate programs need to fit your blog. For example, if the blog is about cooking, then a banner about painting cars will not bring you much profit. You need to target your readers
Basically, a blogger's income is from advertising and affiliate programs. And your income will depend on how much the products that you offer your blog will be in demand among blog readers.
I have a blog about travel, vacation and hunting. And I recently become an affiliate ATN. For me, this is the first such experience. But it turned out to be successful. I receive a percentage of the amount of orders from customers who went to the ATN website from a link from my blog. At the same time, all orders are served by ATN.