Hello,
There are many courses available after 12th.But it totally depends upon you to choose one course.Some popular courses are:

• ENGINEERING
  

Engineering is the application of scientific knowledge and mathematical methods to practical purposes of the design,analysis,oroperation of structures, machines,or systems.

The discipline of engineering encompasses a range of more specialized fields of engineering,each with a more specific emphasis on particular areas of applied mathematics,applied science,and types of application.

• B.Com
  

B.Com. stands for Bachelor of Commerce.The course can be pursued either as a Full Time Graduate Course or Part Time Graduate Course i.e. through Correspondence or Distance Education depending upon ones choice. B.Com. (General) is often referred as simply B.Com. or B.Com. Pass Course.It is General in the sense that it is not Subject Specific and one can choose many combinations of subjects, apart from 1-2 Compulsory Subjects.These combinations vary from institute to institute.

• B.Sc
  

Bachelor of Science (B.Sc.) or B.S. is one of the most popular academic degree courses among the science students after class 12th.The duration of B.Sc. degree course ranges from 3 years to 5 years, depending upon the country in which you are studying for eg. In India the course is generally of 3 years whereas in Argentina the course duration is 5 years.
The B.Sc. degree course is a graduate degree course in Science; this can be a part-time or full-time course.This course forms the basis of science and comprises of the subjects like physics, chemistry, biology, zoology and mathematics.

With the advancements in the area of science and technology, this programme has become a one of the highly studied degree course in the Institutions of India.

• BCA
  

Bachelor in Computer Application (BCA) is an undergraduate degree course in computer applications.With the rapid growth of IT industry in India, the demand of computer professional is increasing day by day.This increasing growth of IT industry has created a lot of opportunities for the computer graduates.

Bachelor in Computer Application (BCA) is one of the popular courses among the students who want to make their career in the IT (Information Technology) field.The duration of the course is 3 years and divided into 6 semesters. It comprises of the subjects like database, networking, data structure, core programming languages like C and java.This course provides a lot of opportunities to the students who are interested in computer field and wants to work in the IT sector as programmer or software developer.






For more details about courses,you can visit our website
Good luck.

Its upto you in which field you are interested in.
If not interested get some interest in any of the field first.