Grid50 - The Marketplace for Photographers & Videographers
craigslist - craigslist provides local classifieds and forums for jobs, housing, for sale, services, local community, and events
Wedio - Your Local Camera Sharing Community
Bedpage - Bedpage is a classified ad posting a website that comes as the alternative to Backpage and offers almost all the major services to post for multiple categories.
KitSplit - Airbnb for creative equipment - rent cameras, drones & more
Facebook Marketplace - Marketplace is a convenient destination on Facebook to discover, buy and sell items with people in your community.