It doesn't hurt to ask, but people here do seem to get to a point where they think a person is trying to get someone else to 'do their homework' for them. There are a lot of videos and books you can read yourself, and you can take riding lessons. It's good to learn things by doing, to learn to be creative and think for yourself, etc. With a specific riding style, there just is only so much you can learn on the internet.
Even if you find an expert on that style on the internet...you really can't learn much from them over the internet. Each riding sport is really about expert, in person coaching, practice and developing fitness and strength in horse and rider. It's also about having the patience to develop up through the levels and to work hard each day over years. There are levels, of course, easy jumper classes at local shows don't require a million years of practice or a million dollar horse. As the saying goes, 'it goes up from there'.
You can learn more by going to the
www.usef.org website and reading the rules for show jumpers in the US. You can go to
www.fei.org to read about the international sport of show jumping. Your state probably has a hunter-jumper association. Look at
www.showjumpinghalloffame.net, or try some show jumper barn's websites to see what type of horse does well in the jumpers. There are many speciality sites to learn from...but when it comes down to it...the best way to learn is to get a coach that specializes in that, and do it.