Cali produces good underground but has pure shit in regards to mainstream(my opinion).
Hiroglyphics- Del and Souls are solid
Living Legends- Eligh, grinch, etc , solid
Canada is producing some solid shit: Josh Martinez, Governor Bolts-check these fools out, good stuff
Houston(where i"m from) has a huge underground scene: Food for thought, Fly, Haircut the Untablist, all good stuff. peace