I'm a marketer and I find affiliate marketing a key thing in my life to earn some good money. However, I know my options regarding products. Putting a course on YouTube or Udemy or some other such websites and creating a PDF and giving it for free to whosoever subscribes are some other examples of creating a product. If you don't have money to bring your tangible product to life, crowdfunding is the way out. Good luck! Upvoted and resteemed!