There are a LOT of choices. Anything that will fit "officer" size frames will fit.
One our members here makes some very nice looking grips:
http://www.thefinergrain.com/
Esmeralda is a top maker:
http://www.esmeralda.cc/
VZ Grips has some nice looking grips:
http://www.vzgrips.com/
I'm sure there are a lot more.