Well... nothing does 'quite' as good as MM in my opinion, but Foobar2000 is an excellent player, and will compile a database that operates much as MM.

I think there is one other, but it is my other PC. I will check later.

You might look at this list. I have only tried 2-3 'organizers'..(which are relational databases adapted to music files). I know several good players, but only MM and Foobar2000 have seemed like they allowed a good database setup.