There are many good detective novels that can be referred to the following popular genre: 1. Psychological suspense: This type of novel usually reveals the inner contradictions and thinking processes of the characters to show the plot and make the readers question the actions and motives of the characters. The more popular psychological suspense novels were Seven Deadly Sins, The Sacrifice of Suspect X, and White Night. 2. Detective reasoning: These novels usually reveal the truth through the reasoning process of detectives or police. It requires a certain amount of scientific knowledge and logical thinking ability. The more popular detective novels were Sherlock Holmes, Detective Conan, and Sherlock. 3. Sci-fi suspense: This type of novel usually combines sci-fi elements and suspense plots to reveal the truth by solving puzzles or analyzing clues. The more popular sci-fi suspense novels were " Galaxy Empire,"" Back to the Future," and " Alien." The above are just some of the common types. Of course, there are many other types and styles of mystery novels that readers can choose according to their preferences.