Sometimes a startup idea is big and bold. It requires millions of dollars and thousands of people. Think SpaceX. But lots of business ideas are much simpler and can be managed by one or a few people as they are getting started and ramping up. That is the kind of money-making and small-business ideas you will find here:
There are dozens of ideas here for you to explore and learn about. See if you find any of them interesting, then become a mini-expert in the area, and then get started.