Millitary

That's  a good idea

Cavalry Parade Grounds take   up  1100  wood and  2700 clay, So if you wish to settle   a town and want it for cav would want to make sure you have 5  wood   and  5  clay  at the least.

Archers Field. 2700 wood and 1100 iron  so      5 wood and  5 iron   at the least.

Spearmens Billet, 2700 clay  1100 iron  so  5 clay  5 iron for  that at the least.

Infantry Quarters. 2700 stone  and 1100  iron  so   5   stone  5  iron   at the least.

Now that is for   7  fooders  you  of course if you wish to go for 5   fooders you can find  6 clay perhaps 5  wood  and  such  higher   resource production but less  food production  so you may sacrifice Pop and  high taxes for   more  basics Ph for troop production, Or go   7  fooder  for  some less  resource production but higher  pop and   more higher taxes    for larger standing armies during peace, Now of course is someone has    A LOT of gold they can just settle on   5 or   7 food and maintain huge armies and go negative in gold  a  lot without much worry as long as   they have the gold.