Collecting dividends on financial investments. This is the world wealthy people live in.
Find something that you love to do and then ~ poof-magic ~ its no longer work.
There's a song line that goes like "There is no harvest without sowing of grain." You can't earn money without working. The closest you can get to that is to do some popular trend, videotape yourself doing it, post it on Youtube, sign up to earn money from views, and you'll have the cash rolling in if you're lucky.
Rob a bank!
No jk. You could invest in bitcoin. Or you could...I don't know...get a job?