in deity 1x1x you normally have less cities, because of the rioting. those cities that you do have, must be excellent and well protected. In deity you need martial law to keep them happy. that means 3 units in every city. every extra unit you build in king after the 3rd will cost you a shield. this will happen fast, because you need settlers to improve land, triremes and explorers. if you are planning a big offense, upkeep will be extreme.
For all this, in deity it is good to found a city on a mine. you need the extra shields anyway, and you have good defense. the food is not a problem. you get 2 food from founding on a hill. in despotism that is the same speed as grass, in monarchy its 1 food slower, but you can catch up with irrigation fast enough. you build the settlers faster because of the mining.