Obscure Media/Rabbit Holes

[AutisticAnomaly]

Hello,
I am new here and was wondering if anyone on here has any rabbit holes online they enjoy going down or obscure Media content that no one has possibly heard of. It is a passion of mine I very much enjoy looking into. if anyone has recommendations please let me know.
https://www.metal-archives.com/albums/X-Caliber/Warriors_of_the_Night/14354I am also a metalhead so that is a reason I made this discovery.
I have found other stuff on youtube (like this one I mentioned)

-AA

[KayLR]

My grandson enjoys Animusic. I had never heard of it before he became obsessed with it. Check it out.
https://youtu.be/HmoUSSVSV7I?si=UUuv7rbVVoDhi2CF

[bae]

MIT Open Courseware is my go-to:

https://ocw.mit.edu/

edX and similar platforms are also great.