What to do with a large collection

I have thousands of CDs and records and am looking to get rid of most of them. i can’t possibly listen to them in my remaining years and my wife doesn’t need them. CDs, it turns out, are not very viable these days, and if you want to sell them to a dealer you can only get store credit!! And, if as in my case, the collection is 90% classical, it seems they will be impossible to unload. Since CDs are antiques these days, I can’t imagine ANYONE who would want them. The only alternative I can see is the garbage. When you consider just how much of an investment they were it’s indeed a sobering realization.
Records are indeed “in,” but how desirable are classical LP’s?

Any suggestions?