I looked at a bunch of sites in your area and as a trainer myself who owns a training business, I looked for places that I agreed with how they train. Of course this is JMO
My top pick
This one looks good too, the trainers actually have credentials that mean something, they didn't get their education online. I respect them as trainers.
Family Dog Training & Behavioral Center / Valley Center, Ks. 67147
That should help you get started. I like the first one because he has a good background of training and it also looks like he supports bull breeds.