A good overview: search the library for a pdf:
Seema Rohmetra. “Kingian Philosophy of Nonviolence Conflict Reconciliation: Evolution and Nature.” The Indian Journal of Political Science, vol. 74, no. 3, July 2013, pp. 469–478.
Online King Records Access
MLK Research & Education Institute, Stanford
https://kinginstitute.stanford.edu/king-papers/
A Suggested Short List of Titles:
“My Pilgrimage to Nonviolence”
“Three Dimensions of a Complete Life”
“Letter from Birmingham Jail”
“Beyond Vietnam”
“Remaining Awake Through a Great Revolution”
1967 Speech on Triple Evils of Racism, Poverty, and War
https://www.youtube.com/watch?v=6sT9Hjh0cHM
Note: see engaged Buddhism