Of course there are! I, a twin lover, will recommend a few books to you: "The First Favorite Concubine" was an ancient romance novel. It was about twin sisters, one in heaven and the other on earth. The little princess married the Prince of Beining on behalf of her sister, and they were entangled in the red line of fate. "The Poison Queen of the Cold Palace: The Poison Girl is also beautiful." It was an ancient romance and classical fictional novel. The poison girl in the twin sisters was reborn as a beautiful and silly queen. She encountered disputes in the wheel of fate, but she still blossomed with peerless beauty. "Dyed Silk" was an ancient romance novel. The female protagonist was reborn as the most noble princess of the dynasty. She was entangled between the royal bloodline and love, and her "twin brother" also played an important role. The above is my recommendation, I hope you will like it~