Internet radio

Check out this site, which is "a directory of internet radio stations and other live streams using the Icecast Streaming Server." Just enter some keywords into the search bar, and you'll find some nice stations:
https://dir.xiph.org/

There's also this extremely extensive directory of internet radio stations:
https://www.radio-browser.info/

Can't miss https://radio.garden/
It's not technically "internet radio", but it allows you to listen to normal radio stations from around the world.
(Check out tv.garden too. Apparently it rebranded and is now: https://famelack.com/ )

Here are some radio sites that I've found either through directories or browsing the internet:
(Video game music) https://nolife-radio.com/
(Demoscene) https://scenestream.net/demovibes/
(Jpop, different streams for different categories) https://asiadreamradio.torontocast.stream/stations/en/index.html
(Electronic and ambient mostly, also indie, different streams for different categories) https://somafm.com/
(Prog rock and power metal) https://www.progpalaceradio.com/the-armory/