Almost every major gym has coaches, depending on how old you are, whether you need one-on-one or one-to-many. Many closed gymnasiums, such as Xiti, Minyuan, Cultural Palace and Lantian, have coaches. If you are an amateur and just like to play, you don't need to study specially. Join the amateur group in Chengdu, there will be many people playing together, mainly for entertainment, and some amateur experts with professional background can give you advice.