There are various courses available and as per your own choice you can choose the field you want to proceed.Some of the courses are as follows:
1.Chartered Accountant
2.Company Secretariship
3.Cost and Management Accountant
4.Cost and Work Accountant
5.B.com
6.BBA
7.BCA
8.NIFT/NID
9.Law,etc.

Hello,
Here i am providing you the list of all popular courses which you can do after class 12th from commerce stream:

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
11 Fashion Design and Technology
12 Hotel Management
13 Bachelor of Statistics
14 Actuarial Science
15 C.M.A.