Sorting local files that are unavailable on streaming?

This is a bit more than just sorting out the local files versus Tidal. I would love to be able to sort out all the albums on my local library that are unavailable on Tidal and Qobuz (I subscribe to both). This is a bit tricky as I don’t necessarily add all the Tidal/Qobuz duplicates on my library. I’d like tag them all and keep them as my “precious stash”. Is there any way to do this, or can you add this feature?