Two Shadows in the Mirror

I'm Out of Books to Read. Please, I Need Recommendations!

I want the protagonist to transmigrate to the side of Emperor Xian of Han, becoming a eunuch or minister or something, with a golden finger, and assist Emperor Xian of Han. Alternatively, they could transmigrate to Emperor Chongzhen's side, or become the child who was carried into the sea by ministers. No soul transmigration.