I would suggest cayennes, bolivian rainbows, any version of anaheims - Nu-Mex would be good. I grew cayennes last year and they were terrific. Very prolific and lots of flavor. Actually, yatsafusa's are also great. A little more heat than the serranos but very good and soooo prolific. They grew 3x over the summer - one whole plant full, then I picked most of the them off the plant and other 3/4 of the plant re-grew. So great. Those are my suggestions. RisaG