Its pretty much red spitters. I went to reptile show in Orlando and there was a small collection of venomous that had a sumatran spitter and another species (?) that wasn't a red. Spitters are more common in private collections than in zoos (which is kind of a scary thought).
Philly really disappointed me when they removed most of the cobras. They had species like suphan, ringkhals, spectacled, red spitters, egyptian banded, an albino monacle cobra and more. The centerpiece of the exhibit was their king cobras (It's still there) which at the time still had Starfire, which set a longevity record at 26 years. It was also the biggest king cobra I have ever seen.