A self-taught baker in New Jersey is helping entrepreneurs all over the world, many with not even a schmear of experience, to open bagel shops.
I would think that if there were any money in this consulting and training, one of the big US firms like Bruegger's or Einstein Brothers would offer it.
Googling for a bit about bagels turned up some other interesting information:
I note that if any of my readers are UVa students or alums, all four of these lists include Charlottesville's Bodo's Bagels. That's impressive.
I also note that according to the second link of the four above, that the areas with the "strongest ratio of bagel outlets compared to all other categories" are New Jersey, New York, Vermont, Maine, and DC.
My recommendations are--I haven't tried nearly all of the places listed above--Bruegger's and Russ & Daughters. If they are not the best, they are probably close enough for me.