There are a lot of topics you can write about when it comes to your Master's or Bachelor's thesis project. You can start by narrowing your topic down to a certain subject. To give you examples, it could be within law, communication, marketing, economics, mathematics, IT, AI, machine learning, medicine, or something else. After narrowing it down to a specific subject, you need to find an interesting topic within that subject. It could be topics on language, society, economy, sustainability, leadership, change development, go-to-market strategies, expansion strategies on X or Y market, UX design, product development, supply chain management, engineering, biotech, bioengineering, and much more. Only your imagination and interests set the limits for what topic you can write about.