You can make money in unlimited ways so its not possible to list everything here but want to mention an important part where everything falling apart, don't restrict your source of income into one. You atleast need to have 6 sources of income to become rich in few generations.
you can list your 6 sources of income, obviosly cant write all of them. You can give us some suggestions too 
Salary from your work
Dividends from your investments
Posting a blog which is going to give income forever
Rental properties
And the list depends on your skills and what kind of profession you are in.