I shoot a red dot scope that dosen't require a peep but on my old bow before I lent it to my nephew had a peep that I loved. It was square and called a light gathering peep as I recall. It was green on the front side and black on the back where you look through. I liked it because I found two problems with the traditional peeps. One was it was hard to see/locate after the draw in low light level conditions. Two the require two many parts ie the string to anchor and orient it when in full draw. The string can fail and 100% of the time will be during a hunting shot.

You may also want to for go the peep and just use the kisser. That's what my freinds use for basically the same reasons.