Join a startup accelerator: Another great option is to apply to a startup accelerator like Y Combinator, 500 startups, or TechStars, where a group of investors will help coach you, connect you with potential partners, and provide startup cash in return for a small stake in your company. The competition is tough to get into these, so don’t rely on them as your only path forward.
Cash Cow is one of the four categories under the Boston Consulting Group's growth matrix that represents a division which has a big market share in a low-growth industry or a sector. It is referred to an asset or a business, which once paid off, will continue giving consistent cash flows throughout its life. Description: A Cash Cow is a metaphor used for a business or a product, which exhibits

Drive for Uber or Lyft: If you're in a locale where you can find Uber or Lyft (or even one of the many competitors around the world such as China's Didi), you could easily make a respectable income. The hours are flexible and you can work as you see fit, making it perfect even if you currently have full-time employment but are looking to make some money on the side. 
Unlike mass audiences, which represent a large number of people, a niche audience is an influential smaller audience.[2] In television, technology and many industrial practices changed with the post-network era, and niche audiences are now in much greater control of what they watch. In this context of greater viewer control, television networks and production companies are trying to discover ways to profit through new scheduling, new shows, and relying on syndication.[citation needed] This practice of "narrowcasting" also allows advertisers to have a more direct audience for their messages.[3]