Shen Hang Changhang Civil Aviation, which one should I transfer to?

I study in Shen Hang, and the graduate school enrolls students who like Beihang University, China Southern Airlines, Harbin Institute of Technology and Xigong University. Shen Hang and Changhang Airlines are relatively ordinary schools, so it is difficult to do aircraft research. Of course, aircraft design is the best major in my school, and I think the same is true for long-distance flights. The focus of general civil aviation is not on design, but on training talents. So it's hard to decide which one to choose according to your goal.