These are my two go to sauces...
Bhut Jolokia (Ghost Pepper) is about 1m Scoville
Trinidad Scorpian is about 1.2m Scoville
Habanero peppers are around 300,000 Scoville. Habanero sauce from the Bombay Herb & Spice company is rated 10 in their scale.
(Oddly, Bombay Herbs and Spices, despite...