Nextdoor.com is a great local marketplace

Nextdoor.com is the essential hyperlocal social networking service designed to connect neighbors within specific geographic communities. Users must verify their residential address to join their neighborhood's private network, fostering a space for trusted local communication. The platform is used for a variety of community-focused purposes, including sharing local news and real-time safety alerts, getting recommendations for local businesses and service providers, organizing events, and engaging in a neighborhood marketplace to buy, sell, or give away items. Its primary goal is to build stronger, safer, and happier communities by connecting people to the information, places, and services that matter most in their immediate vicinity.