Cateye HL-EL410 has an easy mount that is attached to the light - no bracket to affix to the handlebar, which means you can affix the light's base on any tube and swivel the light to point forward.

Also, if you are riding anytime that is at all dark, use the flashing mode (I use it all the time). It makes you WAY more visible than solid mode. It only took one cut off by a stupid auto driver to make me see the value of flashing mode. The shoulder recovery was much sower.