29" Mountain Bike Rims -- a little wider please?

[cachagua]

There must have been endless discussion of this around here, and I'm just not remembering the right search terms...

Anyway, what are people using for rims, to go with 29X2.2 or 2.4 tires? I tried a pair of 2.2s on Belgium-Pluses, and it really looked wrong.

I mean -- after all, that's *why* there's such a thing as Belgium-Pluses, right? Because someone put a 28C on an Open Pro and it looked wrong!

All kidding aside: what are the next increments in width, in a nice-quality 700C rim-brake rim? Not crazy downhill wide, not Fat Bike wide, just somewhat wide.