1. Be a campus agent, post some part-time information in a circle of friends or social software, contact part-time employees for businesses, contact part-time college students, and pay remuneration. It doesn't take much time, and you can also find someone to promote the official WeChat account and app.
2. Part-time jobs, especially in colleges and universities, campus job fairs, etc. A large number of college students are required, usually starting at six or seven in the evening, about one or two hours, during which they just need to sit in their seats and do whatever they want, probably in their own big school or next door.
As a teaching assistant, you don't need to give lectures or anything, just change your homework, basically once a week. Computers and the like will guide college students to operate computers. You can also be the invigilator of that exam, just for two hours, watching some children draw pictures to help the teacher maintain class order and so on.
4. Go to fast food restaurants, supermarkets, etc. These are generally charged by the hour, and you may be required to do it once or three times a week for a few hours each time, and you will arrange it nearby, and the time can also match your schedule. There is nothing to do after school, but note that some need health certificates.
Universities will also provide some jobs for college students. For example, some university workers' groups, offices and student service centers recruit some college students every year. They have free working hours and do nothing. They can study by themselves or surf the Internet there. Those who want to work part-time but don't want to sacrifice their big study time can consider this.