I can make you tons of different templates that all work.
I generally would not recommend trying to make a singular template because terrain is often so varied. How much flat open ground is there? How much water is there? Do you want to use Farming or Gathering? Do you want to use Fishing Docks? Do you want to use trading? Mines and Quarries are finite, inefficient, big, kill citizens, non-removable and most importantly ugly. Do you plan on using them?
You need to consider all of these things if you are making a singular modular system.
Personally, I would recommend simplifying it. Always place a home and storage next to any production job. Only place a home with job. Don't build useless homes just for the sake of building homes.
Doing that method, I can easily build towns of any size and type I want at any speed I want.
