You missed the museums you're talking about. There are a ton of small museums in the Bay Area, from themade.org to the American Bookbinders Museum in SF. Non-profits are also expected to donate all their assets to other non-profits if they fold, here in CA. It's mandated in your articles of incorporation. Themade.org, which I can speak to, has always promised its stuff to Stanford or the CHM if it went under, though thankfully, we've survived COVID and are thriving.