I don't care which breed a horse is. If it looks like a Camel but jumps to the moon it's fine for me. The most warmblood breeds are good at jumping. Most important is not the breed but the mind, heart and character of the horse. I own a Andalusien horse wich does jumping up to the bigger levels. So there is no real recipe for that. Just find a horse that has a brave heart and likes jumping as much as you do.
Hope this helps...
Most breeds are used for jumping but the most common I know of are warmbloods which include selle francais, trakehner, Hanoverian, Irish sport horse, wurttenburger, Oldenburg, danish warmblood, Dutch warmblood, Belgian warmblood and Australian warmbloods.
Hope this helps