Primary Education (Nice)

Hello. My name is George. I am relocating to the Nice area this summer with my family as I have taken up a new posting in France. I have been trying to get my 6 year old son into the school system in Nice. I am looking to put him into a state or catholic/private school. Does anyone have any advise regarding schooling in Nice? I notice that the schools I have tried so far appear to have already allocated places to children, so I am having difficulty trying to find a school which has space.