he looks like a 3c/4a to me.
giovanni makes gentle shampoos for a reasonable price and can be found at walmart, target, and other grocery stores.
iv recently started mixing my leave in conditioner with castor oil and that prevents alot of frizz. also, sleeping on a satin pillowcase is a great frizz reducer. have you ever tried gel in his hair? aloe vera gel (like the kind you use for sunburns) is gentle and provides a light hold.