Out of the dozen or so ramen magazines published in Japan, Ramen Walker might be the most famous. The "Walker" name is appended to all manner of things. If you ever live in Japan, I suggest you pick up a your-city-name-here Walker.
This year there's not 1, but 4 for the Tokyo area alone.
And 36 in total in Japan. Each has shop info for a 100 to 200 places. That's a lot of ramen shops.
If anyone wants a set, show me the money and I'll pick them up for you!