Get a job
Start freelancing
Sell products online
Offer services locally
Tutor students
Create content
Invest in stocks
Invest in mutual funds
Rent out property
Drive for ride-sharing
Deliver food or packages
Do affiliate marketing
Start a small business
Sell handmade items
Flip items for profit
Take online surveys
Test websites and apps
Teach online courses
Write and publish ebooks
Monetize a blog or channel