don't go to the food market for breakfast, there are not many people who buy food in the early morning.
I suggest going to the work area, that is, the office square, the subway exit, near the public platform and the office workers' places. Now people get up late and go out in a hurry. They seldom cook breakfast by themselves, and most of them are bought near the company in order to catch the bus first. The pancakes in our neighborhood are very popular. Although they are not very delicious, I have given up the queue several times.
I wish you success in your business!