I belong to a private Facebook group called Audiophile Swap and Shop. I haven't bought or sold there yet, but this could be a good place to list at least some of your equipment. You could require that people come to you to haul the stuff away, or you could offer to ship the smaller pieces. I am planning to attempt to sell my old Thiel speakers there.
Here's the address: https://www.facebook.com/groups/1742722662620198
Here's the address: https://www.facebook.com/groups/1742722662620198