1. Combining personal hobbies and interests: If you choose the research direction of your thesis that you feel passionate and interested in, you may be able to do research more easily.

2. Pay attention to social hot issues: the development of social economy and culture has promoted the continuous warming of some research fields, such as blockchain, artificial intelligence and environmental protection. These areas either have significant effects or cater to the hot topics of the public. If we discuss these issues, we can get more people's attention and better publicize our achievements.

3. Choose areas with research space: some unpopular areas also have a lot of research space. Compared with mature fields, the research in these fields is more challenging, and more opportunities can be obtained, so we can consider conducting research in these fields.