If you're looking to make some cash on your unwanted goods, Facebook Marketplace is an excellent place to sell your stuff as it will connect you with potential buyers in your area. The platform is free to use, however you'll need a Facebook account to get started. After that, it's up to you! You can price your items as you place (or even give them away for free). Then people will reach out to you via message if they are interested in buying.
You can find out more information on Facebook's website.