If you don't mind taking risks, investing into crypto (especially XRP right now, up until their lawsuit ends) is by far the easiest and fastest way. A similarly good method is looking up in-demand NFTs and flipping them for a quick profit, ofc this needs some starting capital as well as a bit of luck and expertise. Otherwise if you're looking to work online from home, you'll have to either learn a skill like copy-writing, SEO optimization, web designing, graphic designing, etc. and do freelancing jobs on sites like Fiverr. Then there's also Amazon Mechanical Turk where you can do some micro-tasks if they deem you "worthy". And ofc. you can always start building a following on social media and an email list which you can then use for affiliate marketing.