The California Department of Forestry and Fire Protection, better known as "CalFire", maintains a Top 20 Most Destructive California Wildfires list. The list is accessible in the "General Information/Links" box at https://www.fire.ca.gov/stats-events/ (note that the address of the list itself changes as the list is updated).
The LNU Lightning Complex recently made it into the upper half of the list with 1080 structures destroyed, displacing the December 2017 Thomas fire for tenth place. See this related question.
What is the highest rank on the Top 20 Most Destructive California Wildfires list that this complex of fires will reach?