If you look online you'll see that it really doesn't matter what you're undergrad degree is in. I would recommend to do something that will knock out most if not all of your pre-requisites needed to apply to a DPT program. I personally was a Psychology and Art major and I do regret it now as many of my classmates were athletic training, sports med, bio, etc. (those with and exercise/science background may have had it a little easier this semester) but everyone is doing just fine, regardless of their undergrad background, because of the require prerequisites.
As for picking a program there are over 200+ schools so you're going to have to do some work to look in to that, go to the CAPTE website to find a list of all accredited schools and start looking at states that you would want to live in. You'll have to decide if you want public vs. private, in-state vs. out-of-state. You can also see which schools require what pre-requisites, GRE scores, observation hours, etc.
