Well, we have our own Inquiries/Feedback Forum that you can look through. And there is Fauna's Board of Inquiry (BOI).
The BOI in particular is a very valuable resource for researching potential sources to buy from.
But a source that has some sort of chart that lists breeders and answers all those questions about each one? (I think that's what you're looking for?) Has never been done that I'm aware of. Different people have different criteria that they look for in a good retailer...and prices fluctuate a lot from year to year. If you want the most confidence in buying online...stick with the big-name breeders. We're careful about who we allow to advertise here, so if you click on any of the banner ads here, you can be as sure as anyone that you'll get good service and a healthy animal.