Over the years, hiring private tutors has become a widespread practice amongst households in the states. Parents pay good money to get their children the extra push they require to perform well.
If there is something you are good at, like content creation, graphic designing, animation, or any other technical skill, you would be able to find a market for yourself.
If you are a travel enthusiast, you can start a blog documenting your travel and publishing it for the people on the internet to see.
All you need for this to happen is access to a computer, have stable internet, and be aware of a few survey websites.
Babysitting has long been a traditional way of earning a few extra bucks. Most college students start working as a babysitter in their free time and generate extra money.