College radio is the last bastion of reliably weird shit.
Find a station and listen at night. My local station WONC until some years ago had punk and metal shows after midnight which went through phases depending on who mainly ran those shows. The last gasp of the metal show was ~6 years of mostly European female-fronted orchestral metal occasionally taking forays into metal core, Gothenburg metal and screamo. Stuff these days you can explore to your heart's content on YouTube, but there is no assurance that what the algo turns up is any good.
I will never forget the one time I tuned into a college station on a whim and they were playing a jam session recording from my band; a band that had disbanded about a decade prior and biggest claim to fame was playing to like five people at a bar. What are the chances that it was played at all and I just happened to be tuned in? A pleasant surprise nevertheless.
Find a station and listen at night. My local station WONC until some years ago had punk and metal shows after midnight which went through phases depending on who mainly ran those shows. The last gasp of the metal show was ~6 years of mostly European female-fronted orchestral metal occasionally taking forays into metal core, Gothenburg metal and screamo. Stuff these days you can explore to your heart's content on YouTube, but there is no assurance that what the algo turns up is any good.