What’s the best passive income idea that actually works?

I’ve tried a few passive income ideas, but most didn’t really pay off. Any proven methods that can build income over time?

Try creating a YouTube channel, blog, or sell digital products like templates or eBooks. They take work upfront but can earn passively after a while.

If you have capital, dividend-paying stocks or REITs are real passive income. Otherwise, affiliate marketing through content can grow long term.