Not sure where you are, but I live in Tampa. There's an outlet here called Sound Exchange that has thousands of new and used CD's. They never used to ship, but now with the pandemic, they were shipping. Not sure if they will continue, but you can check with them. You can Google them and get their contact info.
Where do you buy your CDs these days?
I'm curious what online sites folks use to find CDs? I use Amazon, and especially their Marketplace sellers for used discs. But prices have become high and supply has become stagnant. I used to use several European retailers (Amazon UK and Presto) before the pandemic, but shipping is extremely slow these days and I've had more than one never show up at all and presumed lost. Surely there are other online retailers?