Let me give you a suggestion. I chose the topic of my thesis when I graduated. I forget the full name. It's "oil trade". This meets your requirements. Oil has always been a key issue of current economic concern, which is relatively novel and hot, and there are many documents for reference. This topic is relatively large, and there are many aspects that can be written. You can find some documents and classify them before deciding what to write. I remember what I wrote at that time was mainly about what factors affected oil trade and measures. I was rather cunning at that time. I am the only one in the whole department who wrote this topic, and neither the tutor nor the defense teacher touched on this topic. Results The paper was rated as excellent.

Personal suggestions: First, understand the subjects and contents involved by teachers other than your tutor, because teachers other than your own tutor may become your defense teachers, so don't write what they are familiar with, or you will be speechless when you defend, unless you learn better than him. Second, don't think it is difficult to write a paper, but you seldom reply, because the paper can be revised according to the tutor's suggestion until it is finalized before the reply. You have at least one month to revise it, but it may take several days to prepare your defense, and the respondents are more thorough than you, especially the subjects involved, so avoid their subjects, even if they ask, it won't be too embarrassing. Third, when revising the paper, you must follow the tutor closely, and after finalizing it, you must communicate with the teacher and ask for the advice of the tutor. If he is the defense teacher, you must prepare yourself mentally in advance.