(adding to your info) I use Audacious on Linux desktop, it’s great at handling streams and has a nice interface, very configurable. I choose to keep it a minimalist “in the corner” style.

Soundcloud kinda took the same journey as Flickr - at first they had a solid hold on a corner of mindshare and people loved it and used it a lot. But then over the years conflicting mission goals appear and the site gets pulled back and forth, shedding a lot of users in the process. In modern terms, enshittification.

Eventually they make their way back around to possibly where they started, but by then they’ve lost all momentum and mindshare. Just like I never went back to Flickr, I just now tried to log into Soundcloud and it hit me with a “been too long since you’ve logged in, forced password reset” so I closed the window and walked away.

I have been a Transistor user for a long time, the releases are always solid - the dev chose to shut down external contributions (bug reports/code fixes) on their Codeberg repo a few years back, so you kinda get what you get. No shade, it works great. https://codeberg.org/y20k/transistor

https://www.radio-browser.info/

Shoutcast (Icecast) streams are still going strong if you’re willing to put in some effort uncovering ones for your genres. SomaFM is still going strong, Big Sonic Heaven is online, DecayFM, Voice of Doom, Dark Asylum, even public radio like CHIRP (Chicago) are pumping out streams run by humans playing new music.