There are many types of romance novels. You can refer to the following popular types: 1. Time travel romance novels: These novels often use modern people to travel back to ancient times as the background to describe the protagonist's life and emotional experiences in ancient times. They often involve topics such as marriage, love, family, power, etc. 2. urban romance novels: they mainly describe the emotional stories of modern urban men and women, often involving love, marriage, family, workplace and other topics. 3. Rebirth romance novels: The main story is about the protagonist being reborn to a certain moment or a certain character to experience life again. The story often involves love, marriage, family, power and other topics. 4. Ancient romance novels: They mainly describe the love stories of ancient men and women, often involving marriage, love, family, power and other topics. 5. Suspense romance novels: The main story is about the protagonist discovering the truth through investigating the mystery and revealing the truth. The story often involves love, detective, suspense and other topics. These are some of the more popular romance novels. You can choose a novel that suits you according to your preferences.