I review books for different venues. One of these is called Reedsy Discovery. When you apply to be a reviewer you may be offered an interview, where you will be briefed on expectations.
There is an opportunity with Reedsy to make money as a reviewer. When you join you open an account that money can be moved into based on your reviews. When someone likes your review and comments on it you may be given a small amount of money. If you love to read and can offer a lot of reviews, your chance of getting positive feedback increases.