Oscar Mager- Founder, EvertalentBrilliant tool for product roadmapping, integrates well with all services mentioned, great team.
Lucas CERDAN- Product & UX, AlgoliaProdPad is a solid player in the market. Good way to link your customer feedback, to ideas, to roadmaps.
Kesava Mandiga- Curious cat. Writer. Explorer.Voting for Product Ideas - this one is what I think you're looking for. We use it to poll for 'feature requests' internally but it can be also used to solicit the same kind of feedback from customers. Offers additional features for product roadmaps and more. Hope this helps.