Spinning.com is best for Studio cycle. That is with Madd Dog athletics. They teach the Johnny G style which was the originator. Be well prepared. It is a huge money making business. They do not teach you how to put together a class or how to teach. You will get a piece of paper that will says you are certified after a 6 hr. class but you will have to learn how to do it on your own. AFAA is not good, interesting but will not teach you how to do it. I have a Lemond cert for studio cycle and am certified with Les Mills for RPM. RPM is outstanding. They provide the workout and music every three months. They teach you how to teach and you have to provide a video of yourself teaching and are graded before you are considered certified. The rides are fun, well received and challenging. However, you can only teach at a licensed facility. In the USA, all corporate Golds Gyms are licensed. Good Luck!