There was a time when I collected hot sauces and you can buy almost any from hotsauce.com, a great website for the collector. It has reviews and heat ranges. You can also buy pure capsaicin that will get you into the 16,000,000 scoville range and sauces from $5 to $400.
I would buy 3-4 at a time bring them to work and have a hot ol time with them. I have ‘Maddog 357’ Which is 357,000 on the scoville scale, I’ve had ‘Blairs mega death’ which is 550,000 on the scoville scale, daves insanity is around 60,000 scoville scale.
2 of my favorites are ‘Hula girl, chipotle habanero’ not blazing hot but tastes great, my wifes favorite also. My favorite is ‘NOS’ by Danny Cash blue label a tad of heat and great flavor.
It’s been a while since I’ve bought any, maybe its time