Which one of the Tang Dynasty's history books, Zhenguan Long Song, Tang Love History, and Zhenguan Zhi Zhi, was more authentic?

As a fan of online novels, I don't think any novel is closer to the truth of history because they are often influenced by the author's subjective influence. However, as far as the history of the Tang Dynasty is concerned, the three novels, Zhenguan Long Song, Tang Love History and Zhenguan Zhi Zhi, all have their own unique perspectives and presentation methods, which may cause some misunderstandings about their historical background and character relationships. Zhenguan Longsong described the political struggles and wars in the early Tang Dynasty with Emperor Taizong Li Shimin as the main character. Although the image of Emperor Taizong was beautified in the novel, it did reflect the political environment and social style of the Tang Dynasty. The Love History of the Tang Dynasty depicted the prosperity and love of the Tang Dynasty from the perspective of Emperor Xuanzong and Concubine Yang. Although the novel depicted the image of Emperor Xuanzong, it also revealed some drawbacks and secrets of the Tang court. " Zhenguan Zhi Zhi " was about the political and military struggles in the middle and late Tang Dynasty, with Li Zhi, the son of Emperor Taizong of the Tang Dynasty, as the main character. Although the novel beautified the image of Emperor Taizong, it also showed Li Zhi's corruption and dictatorship. Therefore, these three novels have a certain degree of fiction and exaggeration, but they also reflect the history and cultural style of the Tang Dynasty. If you wanted to choose a more realistic novel, you had to make a choice based on your personal reading experience and historical background.