What kind of pizza should we get?

Some pizza chains will sell you some dough. If any of the ones in your area will do that, start there. For toppings, use whatever you have in your pantry and/or refrigerator--onions, green peppers, mushrooms, hot peppers, pepperoni, ham, Canadian bacon, black olives, cheese, etc., etc.. You can also take a frozen cheese pizza and "customize" it with your own toppings.