i need pharses which google can read

i want ten thousand phrases related to a product i wish to sell through my web for example glass door display fridge , glass door display fridge Melbourne, glass door display fridge Sydney , glass door display fridge Perth every capital city in every state of Australia and every regional city etc etc when you run out of cities then we will choose another product associated with glass door display fridge say solid door storage fridge etc etc, I have plenty of refrigeration products i can use so getting ten thousand will not be hard now once we have these phrases i do not want to go to the bother of putting them my web so i need suggestions on where we can place them at no cost to me and where Google will recognize them and send the client to my web site