There are several recommendations for novels that feature the themes of obsession, madness, and infatuation with antagonists. Some of the recommended novels include "病態(tài)偏執(zhí),反派大佬的白月光" (Pathological Obsession: The Antagonist's Beloved Moonlight), "他和她的小情書(shū)" (Him and Her's Little Love Letters), and "偏執(zhí)狂:神秘首席專橫愛(ài)" (Paranoid Maniac: The Arrogant Love of the Mysterious CEO). These novels explore characters with strong possessiveness and intense emotions, creating a thrilling and captivating reading experience.