Amazon Fresh, Physical Video Games & Video Game Consoles, Grocery, Health & Personal Care 1.00%
Gift Cards; Wireless Service Plans; Alcoholic Beverages; Digital Kindle Products purchased as a subscription; Food prepared and delivered from a restaurant; Amazon Appstore, Prime Now, Amazon Pay Places, or Prime Wardrobe Purchases 0.00%
If any of your niche ideas fall in the 0% category, cross them off your list. There’s no point in promoting products for no reward.
I would also rule out categories with commission rates of 2% or less because it’ll take a lot of traffic to make decent money from those.
SIDENOTE. Amazon’s commission rates have dropped significantly over the past decade or so. The most recent cut came in early 2020, which is what prompted the belief amongst some people that Amazon affiliate sites are dead. That’s not the case. They’re just not as lucrative as they once were.
C. Check product prices
Generally speaking, you’ll make more money on expensive products.