The best course for commerce students is b.com . B,com provides you knowledge of various subjects such as HRM(Human Resource Management) subject will help you in HR Internship , Accounts subjects will help you in getting internships where you have to maintain accounts for the comapny/firm using softwares like tally , BRM subject will help you in research internship . When you are a b.com (//b.com) strudent you will be offerent internship in marketing and Investment banking as well. Hving good knowledge will help you get equity research analyst internship as well.

Hope this helps !