Fakespot - Fakespot spots, analyzes and identifies fake reviews - helping you out when buying stuff online
Search Best Sellers - This is the only free way to search Amazon's Best Sellers.
ReviewMeta.com - Copy & Paste any Amazon product URL for a detailed review analysis, including a recalculated...
Reddit Bests - Discover products trending on reddit
Feedback Whiz - Feedback Whiz is a useful platform providing the best-in-class seller tools that allows you to automatically monitor all critical events on product listings on the Amazon platform.
ReviewBay - Aggregates the best reviews of Amazon products.