Marketing can be difficult if you don't know which city or province you are going to target. or the order of targeting a list of cities to make more profits and best possible outcomes.
My approach is to form a Hexagon of Localities starting with the moderate Population. I start from Point a and move in a shape of Hexagon until f. by following this approach I surround the difficult to approach cities in that hexagon and things become easy after that. Now I have control over the surround cities or localities and I can easily control the locality which was hard to approach or work with.

What are your thoughts about it?