You need to work a bit at least at first, there ain't no such thing as passive income, unless you have a lot bigger sum to invest, which makes money on its own.
You can look into the revenue sharing model. Pick something, promote it for a while. Adult offers are pretty popular, when it comes to revshare. Depending on the amount of traffic you can send, you're looking at a good few months of promotion, a year, maybe more. Then you will have a passive money maker for some time, not forever.
I did this and many other affiliates on Chaturbate, i promoted their revshare for ~6 months on Twitter 4 years ago. Now it makes me anything between $1.5k-2k a month with doing nothing apart from renewing domains.