Western saddles are actually easier to fit than English saddles. If this is a general purpose saddle, look at used saddles. Many are in excellent condition and very good value for the price. Which saddle will best fit a specific horse depends on the horse’s body shape, and the body shape of the rider, as the saddle still has to fit both. The best way is to try on saddles until you find the right one. Time consuming, of course, but getting the right saddle can be worth the time it takes.