How many emergency contacts does your school ask for? Who did you decide to use, and why?

I'm sure we will never need as many as we were asked for (they want four), but I almost wanted to be able to put more lol. We used our go to people like siblings and parents, but we will have some cousins at the same school as LO and in a true emergency I wouldn't mind them going home with whoever got to them first, assuming they didn't mind. Maybe I can ask them to add a note to his file?