I also love Bandcamp. Maybe one of the last (or even the last?) Platform where you can listen to a lot of full albums ,in high audio quality without any interruption like advertisements, for FREE ! And now I like it even more! Didn‘t know that they pay artists better than other platforms.
I've got plenty of stuff there, really enjoy the ease of managing my releases first-hand. And as for placement firms, my suggestion is RouteNote. Very professional, they 100% get music that's NOT mainstream and do a great job with getting my work on other stores, YT, etc.