craigslist - craigslist provides local classifieds and forums for jobs, housing, for sale, services, local community, and events
Wallapop - Wallapop is a free mobile app that acts as a virtual flea market for buying and selling items locally.
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.
Trove Market - The easiest way to buy/sell used + vintage furniture
FreeAdsTime.org - Browse through the listed classifieds or post free ads now.
Twice - Online Secondhand Clothing Store