You have a decent selection to choose from. The most subtle one I seen is on this car (I hope the owner doesnt mind me posting pic)
Looks like he just the stock one and painted it to match his color. Looks nice. Others are Wings west lip, RM lip, to name a few. If you need a new bumper, you may want to give it some thought. Lips get damaged and you can replace easily. 1 Piece bumpers are a little tougher on the wallet because you would have to replace the whole thing. Good luck.