I’m in the same boat. I ended up with quite a bit of my grandparent’s belongings when they passed. My grandfather was a decorated Navy pilot among other things. I have his actual flight suit, patents he had, documents regarding his career in and out of the Navy, and a bunch of other stuff. I contacted my local aviation museum, library, etc. and got zero interest. I fell down a rabbit hole on ancestry.com and while I did find some distant relatives (including a half sister I didn’t know about) I couldn’t find anyone interested in taking anything I have sitting in my garage. If you want any tips with genealogy, I might be able to answer some questions. As for the “stuff”, I’m also open to suggestions.