Hello student there are plenty of career opportunities available in aviation industry and in upcoming days its going to one of the most demanding field.
Careers after 12th in aviation are mentioned below.
1 B.B.A. in Airport Management.
2 Diploma in Airport Management.
3 Commercial Pilot training.
4 Diploma in Ground Staff and Cabin Crew training.
5 Diploma in Aviation Hospitality.
6 Aeronautical Engineering.
7 B.Sc in Hospitality management (cabin crew)
8 Diploma in Airfare and Ticketing Management.

Feel free to comment if you have any doubt
Good luck