Firstly consider your interests for choosing the best courses after 12th and make a list of your likings i.e. the subjects which you like and want to study in-depth. When you will shortlist the subjects, you can look for the courses in those particular subjects. Make a list of 10 to 15 options that match your interest. Don’t hesitate to include subjects which you haven’t studied in class 12th but are interested in pursuing.