Wishful thinking: If this included something akin to Shoutcast (perhaps via WebRTC), it would give us back the peer-to-peer listening joy we had for small groups and teams back in the day. I miss the era when things were more commonly/naturally peer-to-peer and decentralized.
I'm not saying there aren't still decent media players out there, but honestly I think Winamp is still the best there's ever been.
[1] https://github.com/projectM-visualizer/projectm [2] https://www.clementine-player.org/
To this day I find Spotify and its competitors a poor substitute, algorithms still can't match a well curated station.
If you're looking to tune in to something, I like http://www.somafm.com, possibly the original spotify / coding playlist. (BeatBlender, etc)