Encore Marketplace Inc.

Right off the bat, Encore's support is second-to-none. Reaching out to them through the app connects you with a human who actually cares. Problems are often resolved in the same day, and their support staff are super friendly. Trust and safety are clearly the number one priority for Encore. They also have a really unique listing style - all of their items are listed in short-form videos with live chat which allow you to meaningfully interact with the sellers and rest of the community.