What marketing channels should I use?
That is a question that I hear a lot, amazingly even the slightest in changes of price, demographic target or geography means this can change.
So if I knew what channels to use, I would be using them!
So the major thing you should try and do is have a test matrix.
List the channels you could use, list the costs of each channel activity and the reach (I usually base this on cost per thousand people reached)
The final column is my plagiarism column. Do your competitors do this activity (repeatedly) either in this geography or another.
That gives you a great matrix to test against.