The best kind of shampoo and conditioner?

whats the best kind of shampoo for fine hair? Its long and brown, too. By the way, I'm only 12, but I don't want a kiddy shampoo. I have tried the American Girl kind, Bath and Body Works mosturizing and volumizing shappoos and conditioners, and kirkland signature. Which one is best? Or you can give me the name of a new brand.