Must agree with you here (even though I do like me some Lana del Rey). Majority of Bandcamp music in my collection is retro/synth/new wave, and some "drone" which is nice to have on as white noise while working.
Old-school sites like last.fm used user-submitted tags to link my listening history to new artists I'd probably enjoy. You don't need any fancy machine learning for this kind of basic pattern recognition. Spotify could obviously do this, but like Netflix, Amazon etc, they choose to push artists that make them the most money.
https://cryochamber.bandcamp.com/
Looking at my current most-played list, I'd suggest:
https://starcadian.bandcamp.com/album/saturdaze
https://future80s.bandcamp.com/album/trans-am