There are many good e-books that you can refer to: 1. Fantasy novels: For example," Battle Through the Heavens,"" Martial Arts,"" The Great Dominator," and so on. These novels told the story of the protagonist growing up in cultivation, full of magic, battle, and adventure elements. 2. Science fiction: For example," The Three-Body Problem,"" The Wandering Earth,"" Ball Lightning," and other novels explored the future of mankind and the direction of technological development, as well as the relationship between mankind and alien civilizations. 3. Romance novels: For example," Why Are You Silent?"," A Smile Is Alluring?"," Shanshan Come and Eat ", etc. These novels were full of romantic, warm, and sweet elements. 4. Historical novels: For example, Records of the Historian, Romance of the Three Kingdoms, Dream of the Red Chamber, etc. These novels cover important events and characters in Chinese history and show the rich and colorful culture in the long river of history. 5. Light novels: For example," Blade of the Destroyer,"" The Giant of the Attack,"" The Sword and Sword Realm," etc. These novels tell some fantasy or science fiction stories in a relaxed and humorous tone, which is very suitable for relaxing the mood. These are some of the more common types of novels. You can choose an e-book that suits you according to your preferences.