Product Hunt Reviews Widget - Embed and encourage PH reviews into your product
BuzzFeed Reviews - The best things at 3 price points. A Wirecutter competitor.
ReviewFlowz - Never miss a review again All your reviews, straight to your favourite slack channel.
Typical Contents - Wirecutter for clothes
Review Scraper API - Reviews from 50+ sites in JSON
Trustpilot - We're all about consumer reviews. Get the real inside story from shoppers like you.