@Laura2592, thank you!
I have found so many great lamps, brush chairs, end tables, etc at Goodwill and other thrift stores. I have found some surprising art pieces too! Of course, it's a treasure hunt and luck of the drawl, usually, but can be fun too! Our primary home is mid-century, so I like to have several pieces from that era and have found some tables and lamps at Goodwill that have been in perfect condition!
Oh, and there is a website called https://www.caringtransitions.com/ They have locations in various areas around the country and do online estate auctions. Sometimes you can find some really good stuff, including furniture, pottery, art, etc.