ProfitGuru - ProfitGuru is the easiest way to find the most profits on Amazon.
Jungle Scout - Amazon product research made easy.
Hirundin - Helping design, product and UX teams understand users and make decisions based on their needs and goals
Inventory Spy - Spy how many products remain on any Amazon Product’s offer listing page.
ConfirmKit - User research platform for teams and product people
AMZScout - AMZScout extension will help you make a decision about picking a niche based on the actual data, not intuition.