Ideally there are many ways to earn money. However, unless necessity, I would advise you to leave behind money making ideas for time being and focussing on the long term, concentrate on your Education and Interest in your Last 2 Crucial School Years.

As far as your Question is concerned, the first thing which comes to my mind is WFH Internships in domains like Digital Marketing, Web Development, Content Writing or Teaching/Content Development. You get a lot of opportunities from listings on Internshala provided you have relevant skills.

Other ways include Entrepreneuship or working with New/Local Startups, Social Media Marketing, Running a Successful Youtube Channel, Winning Competitions, Chegg, Telecalling Opprtunities from FootWork, etc.

Stock Market is a very powerful source of money generation and you must start investing from your High School or College Days for excellent benefits and experience a great learning curve.