Customer Feedback Portal - Ask customers what you should build next

Canny - Canny helps you collect and organize feature requests to better understand customer needs and prioritize your roadmap.

Feedback Tools - Curated directory of tools for getting all the feedback

ProdCamp - An all-in-one tool for User feedback managment, public roadmap, feature voting board, changelog.

Feedback Fish - Collect feedback & make your customers happy.

productboard - Beautiful and powerful product management.