As I'm reading your original post, it appears you have several points to ponder. You can correct me if I'm wrong.
First, what to look for in a dojo. I believe this question has been answered in other posts on the subject. Close proximity, a clean environment and instructors that you are comfortable teaching your child would be the top priorities I would look for. Other opinions may vary. If you're in the West Jeff area, it seems Quinlan's would be a good option to consider. Go in, discuss their philosophy, get an idea of how their programs are structured, and go forward from there. See if things click. Then, do the same with others you might choose. Both Yelp and Angie's List have positive reviews for Quinlan's, although they are a few years old.
If you move toward Hilliard, then you have several more options that open up, including Aikido, Arnis, Taekwondo, and more. There is also a dojo in Galloway, USA Martial Arts Southwest, that wouldn't be too far from West Jefferson.
Second, In the original post you indicate a preference for Judo, but you don't mention why that is the case. You do say ultimately, it is up to him to decide, and to me that is a good thing. If it isn't something he instinctively gravitates toward, but is doing so because you wish, it may not be something he sticks with.
Third, when you say you need to broaden your scope, is that because you want to have more options, wish to go beyond the West Jeff area, have heard bad things about Quinlan's, or some other reason? When you indicate your wife wishes to go with Quinlan's or the YMCA, what is or are her reasons for doing so? Convenience? Does she have a friend, or a friend of a friend, who has practiced there? Some other reason? What is it about the instructors that you wish to know? The basic information on the instructors is on their website.
https://quinlandojo.wordpress.com/38-2/?frame-nonce=78dc86dd3f Are you wanting more info, such as lineage or tournament experience and the like?