Honestly, and I know it's not the answer you'd be looking for... I just make an effort to manually label any media I load up on my storage as it goes on there.
1 album, or 1 film backup at a time. It's tedious, but knowing that it's done right, without an automated app screwing things up, ... makes me happy. Surprisingly enough... I'm a man of very little patience too.
If your library is already an insane mess... I couldn't think of it. But I made sure after my last HDD took a dive, that everything moving forward would be a clean house - if you get my meaning.
Would be interested in hearing though if there're really solid successful apps that pull it off without issues. Open to trying new things.