I remember how hard it was to find decent looking silver brake levers for upright bars just 10 years ago. Usually I'd search E-bay for old levers to use on my own bikes. How times have changed...
I really liked the Tektro FL750 levers from the moment I first saw them. They combine a clean moderniste shape and Tektro's usual high quality. But the black clamp wasn't quite right, so we asked Tektro to make us some with silver clamps. Now they are stunning. They fit 22.2mm bars.
If you prefer a MTB style lever, check out the Tektro FL740 levers. The new version has red quick releases. I wasn't sure about the red at first, but they are kind of cool once on the bike.
For the true retro look there are always the inexpensive, but classic, VO City Levers.
Dia Compe Guidonnet Brake Levers are another great choice. Who would have though, ten years ago, that brand new guidonnet levers would ever be available again.
Finally there are two inverse levers, the Tektro RX4.1 and the Dia Compe inverse levers. The latter are available to fit 22.2 or 23.8mm bars.
I think it's pretty great that we can build practical and great looking city bikes without searching for parts on E-bay or at swap meets. Are we in a new golden age of sensible bikes?