4. Freelancing
If you are good at content writing, editing, photography or any such skills. then you can earn money online by working as a freelancer. You just have to register yourself on trusted websites like Upwork, Fiverr etc……
After registering you can start marketing your skills to potential clients . You can also market yourself offline by telling about your skills to your friends or relatives. so that you can get some offline clients for freelancing.
Most of the websites charge some small fee for registration. Once done start applying for freelancing jobs on the portal.