You can absolutely use websites like eBay and Etsy! Try listing some items and making a professional Facebook page for yourself with a link to your eBay/Etsy pages. Then share the information with friends and family and get them to spread the word to people they know. Also, make sure that you have detailed descriptions and multiple pictures with anything you list online. This will help your listing show up in keyword searches, and you are more likely to sell something if the buyer knows a lot about what they are looking at.
There's a proverbial gold rush happening today, of people trying to launch chatbots for their businesses to help automate some of their sales and marketing efforts that are needed to properly grow and scale in today's market. However, similar to California's Gold Rush, those that will likely get rich are the ones that sell the picks and shovels. For that reason, why not launch your own chatbot business? Sure, there's some effort involved here, but this is definitely worth the steep learning curve.
So, where are we supposed to turn to make money the legitimate way online? This isn't just about generating passive income; this is also about finding ways and means to create an active income through the conveniences afforded to us by the internet that will not only help us with our debt obligations, but also empower us to save, invest and get really rich in the future.