Find something that is easier than a weeks preperation. Everyone in asia and their grandma, is ready to work at the next method that pops up, so trying to do something that is easy, should be your biggest timewaster to avoid.
Find the payment gateways that are acceptable in your country that pay you for content, (video image,sound). Make a list of them. Those are where you find your methods. Inside already established marketplaces, and social media platforms.
Most methods are just established business ideas with a twist on them that takes advantage of simple trend. Like for example if someone posted a method tomorrow, saying you could make money from "I love vibing" tshirts on threadless or etsy. Would you try to copy the method, or would you be saying, "what is the business opportunity here, and how can i make the best of it outside this one off trend?"