Part time job is a good option

As college students are above 18 years of age, they can do part time jobs if they want. Many colleges have tie-ups with companies that offer part-time jobs. College students can get this part time job with the help of campusing. Besides, college students can do part-time jobs outside of off-campus for other time apart from college time.
There are currently income opportunities in freelance

If a student does freelancing along with studying in college, there is a chance to earn big from it. There are several websites like Upwork, Fiverr, from where these freelance jobs can be found. Freelance can be earned through graphic design, programming etc.
Sell things online

If you have old items at home, you can sell them online. These items can be sold on platforms like eBay, Poshmark, Depop. As a result, various unnecessary things will be empty from the house, and money will also come in your pocket. Also, the best thing is that if you make something yourself, it can be sold through social media.
You can rent some of your things

If there are some things at home, which you don’t need much in your daily life. It may be a bike or a camera. But you can rent it without leaving it at home. These items can be rented on websites like Turo, Spinlister, Fat Lama.
You can work online as you like

Nowadays many people have become self-reliant by earning a lot of money from online. If a student writes well, draws well, or sings well, he can spread it online through social media like YouTube, Facebook. There are multiple platforms that pay for good writing. Besides, you can earn money by opening a YouTube channel and posting good videos.