My mistake, you're absolutely right, any autoflower (except 100% Ruderalis) is a mix. You can get them that were bred to 100% sativa, but they're still part ruderalis.
Zamaldelica by Ace seeds
Mango Smile by Mephisto (smells stupidly good and highest at 85% sativa)
Lemon AK by fastbuds
Durban poison by HSC (new release)