If you want to be rich, you have to do what rich people do. Stock market 
Stock market is included though but there are really lots of people who have good investments that makes them rich and aiming for leverage income on it would be the best way. Getting rich is not easy at all hence you would really need hardwork, time, effort and good investments.
For most people, the stock market earning is quite difficult to get. It is better to just buy an index tracker.