I feel as if "filk" is a genre that many here might enjoy. It's a sort of amateur folk music created by fantasy and science fiction fans, and covering such themes. I discovered it as a genre in 2019 thanks to FloatingGhost, and I often go back to it.
Here are a few examples I enjoy greatly:
"Dawson's Christian" from "Carmen Miranda's Ghost" (I'd highly recommend this entire album)
https://www.youtube.com/watch?v=VyVuuXUR7Lc
"Avalon is Risen"
https://www.youtube.com/watch?v=Y1x_il69GS8
"Eumenides"
https://www.youtube.com/watch?v=sPoXYMBbmXg