Simply put, direct your effort and passion in a direction you are familiar with. I’m an old retired construction worker. I offer still and drone photography primarily to the industry I’m familiar with. Your reputation will do more to bring in work than a full page ad in the local newspaper. I too offer business cards but do zero advertising. Practice and continually strive to refine your product. It makes a great income supplement to my pensions and SS. The added benefit is I’m out getting exercise, meeting new people, and out of my wife’s way.