Frankly most rims will work fine for touring as long as the wheel is well built.
Personally, like others have said, my favorites are Velocity Dyads, and for touring or commuting, I'd most likely go with 36 spokes. That said, I agree that build quality is a key factor, and the range suitable rims and spokes, for most uses, is quite broad when the wheels are properly tensioned and true from the outset.