Society6: Selling on Society6 is as easy as uploading a high-res file, then setting your retail price and your profit for each art print type and size. The site will produce, package, and ship the product for you. You can also add a large variety of other products, including phone cases, clothing, home decor, and bed and bath products, which have pre-set royalty payouts.
The best review sites (like BestReviews.com buy them all independently and test them without bias) but anyway, you could always review products you already own and use (recommended) or just not focus on product reviews at all, it's just one of 1000's of ways to make money as you should be able to see from the post that shares endless examples of ways people make money other than reviewing products.
This is the most popular payment offered by most of the affiliate programs. Under this program, the affiliate marketers earn commissions from the merchant each time they will send a client to the merchant website, and that client makes an actual purchase. Various affiliate programs offer a specific percentage of the sale as commission while others will pay you a fixed rate for every sale.