Hi Harshit,

Everything depends upon the calibre and the interest you have. For your question, you can opt for some computer courses like Ethical Hacking, Bug Hunting courses, Artificial Intelligence, Machine learning or Cybersecurity and Web Development as additional hobbies along with b.com.  These are the courses which have a good market value and these skills are top-notch. You can learn a lot of things from these skills and can also earn money by doing internships or freelance works.

If you do not have an interest in these fields then you can do Content writing, digital marketing, SEO content writing and Optimizing which also enhances the skills and is easy to do. You can generate a good amount from doing these works. Or you can learn and gather information of further courses after b.com

At last, everything depends upon your choice.

Thank you!