In most areas of the US, there are flea markets & antique malls -- selling all sorts of things that aren't nice enough to be Antiques for the most part.
Some people make a business of buying the contents of storage lockers and selling those items through such a place. Things like end tables, lamps, bulky kids' toys, holiday decorations, mirrors, dishes, yard tools.
I know people who successfully supplement their retirement income this way, but they also have storage space for the items so that they can rotate stock in their flea market booths. They are also handy, and will clean & fix items.
Nothing comes into their home until they are certain there are no pests!
jmho ymmv lrr