>> I don't think Spotify and streaming killed the music subculture, it's still very much alive but requires more intention to find
No, I think music as a subculture is dead.
When I was a kid in the 80's I would sneak out of the house and go to a hardcore punk show that was put on by kids for kids with no adult involvement whatsoever.
Right now, on a Saturday night, where is there an all-ages music show going on anywhere in the US where the kids in the pit are 14, 15 years old and no adult knows or cares that they're there? There's a culture now, but there's no subculture. Most kids are watched too closely for that to happen now, which is good! Mostly. And subculture doesn't require a credit card and a subscription plan.
How did I find new music? Word of mouth was good, cassette tapes that your friends made you. Going to shows. A little bit from Night Flight. The Decline of Western Civilization. Urgh! A Music War.
Compilation records. American Youth Report, Flipside Vinyl Fanzine, the Mystic record comps, Rat Music For Rat People, the Blasting Concept, Dope, Guns, and Fucking in the Streets, Let Them Eat Jellybeans, maximumrocknroll. Forced Exposure. No New York. Going to record stores "in the city".