Hey Manas,
There are primarily 2 different types of jobs that you can apply for when studying abroad. They are:
In USA, students are allowed to apply for curriculum related part-time jobs on-campus. Off campus jobs generally consist of jobs such as being a receptionist, waiter, etc. While examples of On-Campus jobs could be Library Monitor, Teaching Assistant, etc. When the college is not in session, most universities even allow students to work off-campus. There are several blogs that tell you super helpful stuff about part-time jobs for international students. Try reading these for more info-https://ischoolconnect.com/blog/part-time-jobs-for-international-students-in-the-usa/
https://ischoolconnect.com/blog/benefits-of-working-part-time-while-you-study-abroad/