There are many topics to choose from when writing a novel. The following are some common topics: 1 Fantasy Adventure: explore the mysterious world, experience various fantasy adventures, and fight various monsters and enemies. 2. Science fiction: explore the future, discover the potential of technology, or describe a future social and political system. 3. Romance: Telling love stories, describing romance and passion usually involves emotional entanglements and conflicts between characters. 4. Fantasy Magic: Exploring magic and mysterious powers, describing the experiences and battles of characters using these powers. Historical Biography: tells the story of a historical figure, including their adventures, love and achievements. Suspense Reasoning: Description of a mystery or case investigation and resolution usually involves interpersonal relationships and psychological struggles between characters. 7. Horror and Thriller: Exploring the elements of horror and horror, describing the fear and struggle of the character usually involves monsters, supernatural events, curses, etc. The above were just some common topics. You could choose different topics according to your own preferences and creativity.