The basic NRA orientation course is a good place to start. Usually the instructor, at least those at our range, have more involved classes available or can point you to a reputable instructor. For instance I teach a handgun self defense class for women and my students come from past student reccommendations and the range master as well as the fact that the S.O. lists my classes on their website. Get involved at a good range, especially one that rents guns and you will find your way. Be attentive and respectful and listen if you are going to learn, most basic tool. After some seasoning, try Front Sight or GunSight. Well worth the cost. Good luck and use your common sense to avoid an unqualified candidate. Your local IDPA is a great source of knowledge and training.