It starts with your dream. Where do you want to go with this venture? In five years, where do you want to be? If you were making a fancy meal featuring coq au vin, you'd start with the picture in a cookbook illustrating the succulent sautéed chicken glistening in a red wine sauce. This is where you want to end up. This is why you're going to the grocery store in the first place. This is your goal.
All successful business ventures start with a personal vision, a fundamental plan, a goal or an objective. Selecting the right franchise should start with some sort of personal plan and goal-setting exercise. Know where you want to go in your business. Know the general type of work you prefer. Know what really fires you up and gets you excited about business.