I’ve never had anything of value (still don’t) but you might want to check with the kids just to make sure they don’t want it. If they do, then they gotta take it right now!
My mom didn’t have anything but a few inexpensive dishes; she tried giving a platter away one time and I said ‘hey, that’s my inheritance you’re giving away!’. LOL
Anyway, I don’t do any selling online, whether it be Facebook Marketplace, ebay, craigslist, whatever. Nothing I have is valuable enough to make the hassle worth to me. But I’ve heard people researching what things will sell for by going to ebay and searching the section of SOLD items for your item. Don’t look in the current open bids; just because someone lists something for sale at $75 doesn’t mean they’ll get that. There might be 5 recently sold items that only brought $20-$30; that’s your true value.
I recall seeing people set up a business where they list and ship items for other people on ebay and they take a cut of whatever it brings. Might be another option.
If it’s specialty items like books, designer clothes, china, etc., I might be able to find some pricing websites for ya.
I’ve already given my kids/grands some valuable stuff. I have checked ebay and other places, but people won’t part with a lot of money for something that’s verifiable, and I wouldn’t blame them.
“I recall seeing people set up a business where they list and ship items for other people on ebay and they take a cut of whatever it brings. Might be another option.”
Wish I knew someone that would do that. That I knew and trusted.