I assume you are mainly interested in the Late Imperial period (Ming and Qing) There is lots of stuff, but you might start with

Dykstra, Maura. Uncertainty in the Empire of Routine: The Administrative Revolution of the Eighteenth-Century Qing State. Cambridge, Massachusetts: Harvard University Asia Center, 2022.

Is just out, and I have not seen it yet, but it is getting good notices and she is very smart, so it might be the best place to start.

Going from the bottom of the system

Reed, Bradly. Talons and Teeth: County Clerks and Runners in the Qing Dynasty. 1st ed. Stanford University Press, 2000.

Is the go to book on the informal bureaucracy of clerks and runners.

Watt, John R. The District Magistrate in Late Imperial China. First edition. New York: Columbia Univ Pr, 1972.

On the “father and mother officals“ who were the basic level of the local state.

Guy, R. Kent. Qing Governors and Their Provinces: The Evolution of Territorial Administration in China, 1644-1796. University of Washington Press, 2010.

Title says it all

Bartlett, Beatrice S. Monarchs and Ministers: The Grand Council in Mid-Ch’ing China, 1723-1820. Berkeley: University of California Press, 1990.

On the central bureaucracy

Rowe, William T. Saving the World: Chen Hongmou and Elite Consciousness in Eighteenth-Century China. Stanford, CA: Stanford University Press, 2001.

A really good study of a well-known provincial official

Szonyi, Michael. The Art of Being Governed: Everyday Politics in Late Imperial China. Reprint edition. Princeton University Press, 2017.

The state as seen from the point of view of the people, and a Ming book.

Huang, Liuhong. A Complete Book Concerning Happiness and Benevolence: A Manual for Local Magistrates in Seventeenth-Century China. Tucson, Ariz.: University of Arizona Press, 1984.

Your best primary source