Actually "School of Fish" if we are talking about the same band. Their first album is Grrreat. I am not sure they are that obscure though. They were pretty popular and on MTV in the early mid 90s. Three Strange Days was in pretty heavy rotation (when MTV played music).A school of fish
Dan Hicks and the Hot Licks
A tongue in cheek mix of folk, country, swing and San Fran psychedelia.
(If by obscure you mean should have been rich but most never heard of.)
"not unknown but didn't get the recognition they deserved," Gentle Giant. Totally unique.