Course Personal Trainer

I have to make an online or Home Study Course to become a certified personal trainer thought. My goal is to learn to work more effectively and possibly create some extra income. I have seen AFTA, NFPT, adjust, and many others. Can anyone tell me what is best and why? Call or visit a local gym or YMCA and speak with one of the PTS is about what they did. Chances are they would be able to tell you which is better than most of us here. If you want to learn the most effective ways to reach your own fitness goals and / or are a true fitness professional (as opposed to the large number of under-educated duh.trainers contrast) are interested in joining NASM