Either the Chiefs or Broncos would be a good fit. Arizona is the only team he's visiting in the NFC, but in reality, I doubt the Mannings would want to get in each other way to get to the Superbowl. So I don't see that happening. People are saying Miami is a lock. I don't understand why he would want to Face Tom Brady twice, while the Bills and Jets are equally tough teams to beat.
Houston is would be a great fit, but I doubt they would send Schaub packing for guy that probably only has 3 years left in him. Broncos is the best fit for him, and they got more than enough money to pay. Plus the AFC west is a joke, guaranteed Division title verses the AFC east.