Well there's still radio! You have a vast amount of professional and amateur radios at your disposal thanks to api like radio-browser.info [0] which many sites and mobile apps use. In fact I do such a site myself [1] (but I'm not Russ Hanneman) ;)

Personally I miss Google Play Music and its automatic playlists A LOT.

[0] https://www.radio-browser.info/users

[1] https://www.radio-addict.com/en/streaming