Bandcamp makes it plenty easy to find good independant (or small label) music. It’s really not a difficult process (and I say this as someone that does it regularly for my own non-monetised podcasts). Search by genre see whats charting on the website, or read through the Bandcamp daily blogs and you’ll find a lot of good music pretty fast.
If you’ve got a million followers on youtube, find a smallish label or two putting out stuff you like; tell them you’ll help promote their releases in exchange for a cheap licensing deal to use it and pay a lesser fee and let them send you tracks.
Also independent doesn’t mean unpublished. There are plenty of independent artists uploading music to Spotify and the ilk.
