iTunes is still the best I have, mainly because it syncs well with iPhone, but also because it (kind) of just works, and I have a pile of applescripts to beat it when it doesn't.

I still wish it was a bit better at finding lost files, but maybe I'll vibe code something to do that for me someday.

(I'll have an album in the folder it doesn't see anymore, point one song at it, and it can't "find the rest" of the album, but I have to point each one out)