Amazon HD doesn't quite sound as good as Qobuz but has so many titles that I canceled mu Qobuz and returned to AmazonHD.
The biggest issue for me was getting AmazonHD on my main system, they don't make it easy. It isn't supported on a lot of streamers and there are some limitations unless you directly connect your PC / Mac to your DAC.
Supposedly Volumio has obtained the rights to the API and will have an AmazonHD plugin soon but it will probably only be available on the the paid version like Qobuz and Tidal which unlike Spotify which is supported on the free version.
Spotify HD if it ever really ever happens would be the ticket.