Some advice - I'm no stranger to online business and I can tell you, without a doubt, that there are a couple types of businesses that are going to be more advantageous for you to get started with. And more importantly, they are more likely to make you money in the short term.
Those would be Affiliate and Ecommerce businesses. Starting an affiliate website is hands down the easiest option. Without a ton of work, you can get an affiliate site up and running in no time.
An ecommerce site takes a bit more work, but depending on the platform you choose, it too can be a quick process. We'll cover that more in a moment. Basically, these two options provide the fastest way to start generating income.
However, they both require a good deal of planning, keyword research and promotion to get off the ground successfully.