Amazon music HD has the best catalog followed closely by Spotify. I do believe that Amazon sounds better than Spotify but not as good as Qobuz. Qobuz selection is ok but has the best sounding app. If you're a Prime member you can have Amazon and Qobuz for about $20 a month.
Which music service?
As one who has neglected their digital front end. Have been using WiFi to Logitech Touch and just added an Audioengine B1 before we decide on a more sophisticated devise.
Is there a music service that offers the more Bebop, straight ahead Jazz and Grateful Dead content we should consider or are they somewhat similar?