Well unless there is a good solid app that could replace iTunes as my go to music player than I'm gonna have to remain with iTunes. Is FLAC superior to ALAC? Can CDs be ripped into FLAC? I can't see myself moving away from the "Apple ecosystem" anytime soon so going with ALAC probably wouldn't be so bad for me.
The best app I know of is Swinsian. http://swinsian.com/ . It's the most iTunes-like, most embracing of the macOS.