In marketing if you have no target it’s not like the motivational speech of “Shoot for the moon if you miss, you’ll land among the stars.” It just doesn’t work that way in business. You’ll be shooting into the black expanses of space–where no one exists.
Sit down and look at what you are offering and look around at who you think would be perfect for your product or service.
You need to know exactly (or as exact as you can possibly make it) who your customers are. I’ve had people go down to the hair color!