What are all the different types of police officers in Canada?

Theres your regular police that works in neighborhoods/municipality's, then there are the ones that work around big city's. Finally theres the RCMP. The further away you go from big cities like Quebec, Montreal, etc. The better paid you are. RCMP works everywhere in Canada and does everything, does that are between RCMP and regular police like SPVM for example, I'm not sure what they do differently from regular cops like SPVM.