There is a novel called " The Reborn Tang Emperor Li Chengqian " that meets your requirements. This novel was written by the author Yu Hong. It described the 17th year of Zhenguan in the Tang Dynasty. Li Shimin was disappointed with Li Chengqian's actions and had the idea of deposing the Crown Prince. At the same time, Li Tai was also pressing him. The main character, Li Chengqian, had transmigrated to this period to become the Crown Prince. He was faced with a dangerous situation, and his goal was to escape from this situation. This novel might meet your needs for Li Shimin's rebirth and Li Chengqian's favor.
There are several novels related to Li Shimin's rebirth and doting on Li Chengqian: "Zhenguan Fengyun","Life to Death","The Great Tang's Imperial Grandson: Saving Li Chengqian at the Beginning","The Strongest Imperial Grandson of the Great Tang","The Great Tang: Eight-year-old Child, Mad Li Shimin","The Great Tang Lying Prince, Li Shimin Begs Me to Become Emperor","The Great Tang: A Fish-fishing Prince, Overheard by Li Er","The Unfilial Son of the Great Tang","The Reckless Prince of the Great Tang Li Chengqian","The Great Tang: Unfilial son, do you want to rebel?"," Reborn Li Chengqian doesn't want to be the Crown Prince "," Tang Crown Prince Li Chengqian "," Transmigrated to Li Chengqian's son Li Xiang "," Tang's First Crown Prince ", and so on.
Li Chengqian was disappointed in Li Shimin's novel when he was reborn. It was " The Reckless Prince of the Tang Dynasty, Li Chengqian." This novel told the story of Li Chengqian transmigrating to the 17th year of Zhenguan in the Tang Dynasty and becoming the Crown Prince. However, Li Shimin was disappointed in him, Li Tai was also pressing him, and a group of relatives encouraged him to rebel. This novel described Li Chengqian's struggle to escape from a dangerous situation.
Li Chengqian was disappointed in Li Shimin's novel when he was reborn. It was " The Reckless Prince of the Tang Dynasty, Li Chengqian." This novel told the story of Li Chengqian transmigrating to the 17th year of Zhenguan in the Tang Dynasty and becoming the Crown Prince. However, Li Shimin was disappointed in him, Li Tai was also pressing him, and a group of relatives encouraged him to rebel. This novel described how Li Chengqian escaped from a dangerous situation.
Li Chengqian was disappointed in Li Shimin's novel when he was reborn. It was " The Reckless Prince of the Tang Dynasty, Li Chengqian." This novel told the story of Li Chengqian transmigrating to the 17th year of Zhenguan in the Tang Dynasty and becoming the Crown Prince. However, Li Shimin was disappointed in him, Li Tai was also pressing him, and a group of relatives encouraged him to rebel. This novel described how Li Chengqian escaped from a dangerous situation.
Li Shimin's novels, which favored Li Chengqian after his rebirth, had many names, including Zhenguan Fengyun, Life to Death, The Great Tang's Imperial Grandson: Saving Li Chengqian at the Beginning, The Strongest Imperial Grandson of the Great Tang, The Great Tang: Eight-year-old Bear Child, Mad Li Shimin, The Prince of the Great Tang Lying Down, Li Shimin Begged Me to Become Emperor, The Great Tang: My Father, Emperor Taizong Li Shimin, The Reckless Prince of the Great Tang Li Chengqian, The Reborn Emperor of the Tang Li Chengqian, Reborn Li Chengqian Doesn't Want to Be the Crown Prince, and so on.
[Li Shimin has a special feeling for Li Chengqian.] Li Shimin let Li Chengqian supervise the country and let Li Tai write a letter, intending to make Li Chengqian the emperor and Li Tai the assistant of his brother. Li Shimin had deep feelings for Empress Zhangsun and especially favored Li Chengqian. Li Chengqian's character was also very high. He was conferred the title of Crown Prince and was taught by famous scholars. However, as Li Chengqian grew older, he gradually had some problems, such as having a good taste in women, swimming slowly, and so on. In his later years, Li Shimin was distressed by Li Chengqian's behavior, while Li Chengqian complained about his father's favoritism. Thus, the fate between father and son had come to an end. In general, Li Shiming had special feelings for Li Chengqian, but as time passed, their relationship gradually drifted apart.
Li Chengqian was the eldest son of Emperor Taizong of the Tang Dynasty, Li Shimin. He was born in Chengqian Hall of Taiji Palace. He had shown his intelligence since he was young and was loved by Li Shimin. After Li Shimin ascended the throne, Li Chengqian was made Crown Prince. Li Shimin had high hopes for him. However, Li Chengqian had a problem with one of his feet, causing him to be unable to move. Even so, he was carefully nurtured by Li Shimin in terms of education. However, Li Chengqian showed some bad behavior as he grew up, including attempting to rebel and force the abdication. In the end, his rebellion failed, he was demoted to a commoner, and died at the age of 26. There was no clear answer in the literature as to why Li Chengqian did not succeed to the throne in the end.
There were a few novels about Li Shimin and Li Chengqian: " Transmigrated into Li Chengqian's Son and Blocked Li Shimin "," Did [Tang] Li Shimin Beat His Son Today?"," The Reckless Crown Prince Li Chengqian of the Tang Dynasty ", and " Tang Dynasty: My Apprentice is Li Chengqian." These novels told the story of Li Chengqian transmigrating to the Great Tang and becoming the Crown Prince, as well as his relationship with Li Shimin and his adventures. Among them," Transmigrated into Li Chengqian's Son and Stumped Li Shimin " and " The Reckless Prince of the Tang Dynasty, Li Chengqian " were stories of Li Shimin's disappointment in rebirth, while " Did [Tang] Li Shimin Beat His Son Today " and " Tang: My Apprentice Is Li Chengqian " involved Li Shimin's feelings and parent-child relationship with Li Chengqian.
Li Shimin had a special feeling for Li Chengqian. Li Shimin had high hopes for Li Chengqian and began to train him early on, letting him take on the responsibility of supervising the country and managing national affairs. Li Shimin especially favored Li Chengqian, making him the Crown Prince and accepting the teachings of famous scholars. However, as time passed, some problems gradually appeared in Li Chengqian, such as indulgence and indulgence. In his later years, Li Shimin was distressed by Li Chengqian's behavior, while Li Chengqian complained about his father's favoritism. As a result, the relationship between father and son gradually drifted apart. In general, Li Shiming had special feelings for Li Chengqian, but as time passed, their relationship gradually drifted apart.