What is the niche market for option trading in U.S.?

I am trying to come up with an option trading educational website. I am doing some research on it. What is the niche market of option trading for U.S.? How much is the potential or what should be my positioning strategies? Also I am willing to find the biggest challenge and frustration of people who really start options trading and why they start it in the first place and what have to be the magic bullet for them to sell. Could anybody help me with my research? Thanks in advance.