Do you have any novels that you recommend where the female lead is a strategist?

In the novel, the female protagonist was a strategist. A few of her good sisters seemed to have been trained as strategists. For the sake of her sisters, they had been working hard to help the male protagonist become an emperor. The male protagonist finally became the emperor, but for the sake of the country, he could not be with the female protagonist. It was not Wenwen who had transmigrated. It was a novel from a few years ago, so her impression of it was rather vague. She only remembered that it was written very grandly.