Because of the extensive tradition of pirate radio in the UK (from Radio Caroline on down), London probably has the most insane landscape of 24/7 internet radio in the world. I've tried to rank these in terms of approximate popularity ranging from NTS (as mentioned) on down to purely DIY weekend-only amateur collectives like LWSTD. If you don't know the stations in your city, just have a quick google and do some Instagram "Following" list exploration and it should be pretty easy to find more (e.g. in Amsterdam check out Echobox, Radio Tempo Não Pára, RRFM, etc...)
- NTS (Dalston) https://www.nts.live/
- Rinse FM (Hoxton) https://rinse.fm/
- Worldwide FM (Islington) https://worldwidefm.net/ (currently mostly on ice but great archive)
- Balaami (Peckham) https://www.balamii.com/
- Soho Radio https://sohoradiolondon.com/
- Reprezent Radio (Brixton) https://www.reprezentradio.org.uk/
- Netil Radio (Hackney) https://www.netilradio.com/
- Subtle Radio (Hackney) https://www.subtleradio.com/
- Voices Radio (Kings Cross) https://www.voicesradio.co.uk/
- Aaja (Deptford) https://aajamusic.com/radio/
- Do You!! Radio (Hackney) https://doyou.world/
- LWSTD https://www.lovewillsavetheday.fm/