Favorite obscure B-sides/Unreleased material?

Hello fellow weeners. I’ve been a fan for a while but I mostly only got into their studio material. But recently i’ve rediscovered my love for The Boognish and The Gospel and have been diving deeper into their live material and their unreleased stuff.

But what i’m looking for today is some truly obscure shit. I’m not talking Young Chou Lin, Kim Smoltz, The Rainbow, Etc. I’m looking for shit only a few thousand humans on planet earth have discovered.

Please give me recommendations, I want to go deep into the abyss.