Hi Gingko. The biggest consideration is the size that you need it to grow too but if your not looking for anything too tall then green box (Buxus) would be very much in keeping. For taller hedges then green holly was popular but maybe not very practicle due to it dropping sharp leaves !! Other plants that would be in keeping would be Yew, Portuguese Laurel, green euonymous, and at a push even plain green grisellina but as I say, depending on how high you want it to grow too and how much room you have will determine which one would be best suited, maybe you could let us have more details please !!
Lannerman