I’ll go ahead and vouch for the Archangel list, but since you guys specifically asked for "metal," I’m going to dump the prog side of things in a separate post instead.
ABIOGENESIS - 90s, AGITATION FREE - 70s, CAN - 70s, AUNT MARY - 70s, BRAINTICKET - 70s, BURNIN RED IVANHOE - 70s, CATAPILLA - 70s, CULPEPPER'S ORCHARD - 70s, DRAMA - 90s, EARTH & FIRE - 70s, ELOY... Honestly, I can't bear looking at this collection anymore. It's just Part Two all over again.