first of all you need to change your perspective,good and bad music doesn't have a timeline. Horrible music exists in the past too and great music exists today. You can't look down on someone for an opinion because everybody who has an opinion and taste is both right and wrong

But yeah
I fully respect Bowie but I can never just get into his music. I understand why people like him though. So all music from 90s and back?

John Denver only country singer I can listen to tbh
dizzy gillespie
tracy chapman
miles davis
eric clapton
ray charles
john coltrane
the smiths
grace jones
metallica
nirvana
mj
ben e king
iron maiden
the cars
the beatles
sonny rollins
Bill Withers
Vivaldi only classical music I like heavily
slayer
the cure
I tend to just cop random compilation albums for rnb and other genre's. It's rare for me to go into a specific artist in depth.
Most hip hop for made a lot of progression in the late 90's early 2000's so I'm not going to count that