There was a wide range of topics for online novels. They could choose different topics according to different reader groups and market needs. The following are some common web novel topics for reference: 1. Fantasy: This type of novel usually involves magic, myths, legends, and other elements suitable for readers who like fantasy and fantasy. 2. City life: These novels usually describe the life of modern people, including the workplace, emotions, family, and so on. They are suitable for readers who like real-life topics and urban plots. 3. Historical Military: This type of novel usually involves historical events and military struggles, suitable for readers who like history and military affairs. 4. Science fiction: This type of novel usually involves technology and the setting of the future world. It is suitable for readers who like science fiction and fantasy. 5. Romance novels: These novels usually describe romantic love and sweet family life. They are suitable for readers who like emotions and sweet pets. 6. Game competition: This type of novel usually involves game settings and competition. It is suitable for readers who like games and competition. When choosing a web novel's theme, one had to consider the readers 'preferences and the market's needs. At the same time, one also had to choose a suitable theme according to one's own interests and writing style.