When I was in ReLeaf Center the other day they had the biggest selection of hash I've seen. They had like 6-7 types of hash. I saw Durban, Sour Diesel, and a few other strain-specific hashes. They also had some CO2 hash oil. I haven't tried any lately but they were lookin good.
Be prepard to spend a bit of money though. ReLeaf Center is a bit pricey. But its a good shop and they are consistent.