Habaneros have decent flavor too, not that hot but they’re good. I’d try one of the Asian supermarkets around, they should definitely have some type of variant of that pepper you’re after.
I’m attempting to grow the current worlds hottest chilli; the Trinidad Moruga Scorpion but its proving to be a bitch with the current weather situation. It’s hotter than police pepper spray and you have to wear latex gloves when you pick them.