Deez... (sorry... had to)
Anyway... Peanut by Flavor Express is an authentic strong peanut flavor (not peanut butter... roasted unsalted peanut)
Toasted Almond by TFA
Hazelnut (Capella) FW is good as well
Kevin over @Vaperstek sent me Inawera's E-Aromat flavor, Salted peanut. It smells exactly like a bowl of salted peanuts. Admittedly I haven't tried it stand-alone but in a recipe my wife made it tasted very authentic.
On a semi unrelated note Kevin is a super cool guy. Sorry, had to throw that in.