Amazon’s Best Sellers Rank (BSR) uses previous and recent sales of products to identify the most sought-after products. It can help Amazon sellers to identify good products to sell on the platform. If you want to use it for this purpose, keep in mind that it changes on a daily basis. Also, it’s better to choose product categories that have a number of products with a best sellers rank. This way, you know that shoppers are open to a number of different products which means that the segment isn’t too crowded yet.