There are several novels recommended for you that revolve around the theme of being a concubine in the Kangxi era. One of them is "清宮吟:鳳霸君恩" which is a classical romance novel that tells the story of Emperor Yongzheng's mother. Another novel is "清宮一夢" which is a palace intrigue novel that follows the time-traveling journey of one of Kangxi's adopted daughters. Additionally, there is "康熙穆嬪(清穿)" which is a sweet and dramatic story about a woman named Chen Rongrong who travels back in time to become a concubine of Kangxi. These novels offer different perspectives and storylines related to being a concubine in the Kangxi era.