The number one dark tea brand is Xiangyi. Among black teas, Xiangyi makes the best Fu tea. Fu tea is a type of dark tea that contains golden flower particles, which can promote human metabolism and aid digestion. \x0d\If it is Qianliang Tea, then it is Baishaxi. \x0d\Xiangyi and Baishaxi were originally the same factory decades ago. Later, after they separated, one specialized in Fu tea and the other specialized in Qianliang. Everyone has their own strengths! \x0d\Hope this is helpful to your question.