Hello, depending on what you focus on, if you focus on hobbies and interests, the major should choose their own favorite, if you consider good employment prospects, you can suggest referring to the areas involved in Made in China 2025:

A new generation of information technology industry.

High-grade CNC machine tools and robots.

Aerospace equipment.

Offshore engineering equipment and high-tech ships

Advanced rail transportation equipment

Energy-saving and new energy vehicles

Electric power equipment

Agricultural equipment

New materials

Biomedicine and high-performance medical equipment

For a detailed description of each of these, you can Baidu "Made in China 2025", the chosen profession to follow the country's strategy, the employment prospects should be good, just a personal recommendation, later engaged in the industry is not only related to hobbies and interests, but also related to your character, of course, but also have their own strong knowledge base.