Hello Piyush !

Following are some best courses which you can pursue after 12th , being from a commerce background :

1. B .Com.
2. Law
3. C.A. (Chartered Accountancy)
4. B.B.A.
5. Bachelor of Economics
6. C.S. (Company Secretary) course
7. Hospitality Diploma courses
8. Animation and Multimedia Courses
9. Journalism and Mass Communication
10. Event Management course

If you want any further information regarding these courses please feel free to to ask

Hope it helps !