All the fields of Engineering are best provided, you must be interested in the field you are studying. Now there are some engineering branches which have more job opportunities or higher packages, we call them so called the 'Best'. So there is no so called Best but yeah! if you want to know about the fields which have more jobs are-

• BTECH CSE
• BTECH CSE (with specialization in Data science & ML/ML & AI/IoT/Cloud computing/Blockchain Development)
• BTECH ELECTRONICS & COMMUNICATION ENGINEERING
• BTECH CHEMICAL ENGINEERING
• BTECH AEROSPACE ENGINEERING
• BTECH AERONAUTICAL ENGINEERING
• BTECH ELECTRICAL ENGINEERING
• BTECH MECHANICAL ENGINEERING
• BTECH INFORMATION TECHNOLOGY
• BTECH BIOTECHNOLOGY
• BTECH AGRICULTURAL ENGINEERING
• BTECH INSTRUMENTATION ENGINEERING

For more information regrading Engineering consider the link below:

https://www.careers360.com/courses/engineering-course

I hope this helps. Wish you a great day!