Try German Docs in Russia where there are several, either from the West or from "all fronts":
https://wwii.germandocsinrussia.org/...-luftwaffe-okl
The Bundesarchiv has downloadable files in the RH 19-IV series with parts of the diary and situation reports of Ob. West from 1941.
Also downloadable are files from Luftflotte 3. The daily reports from August 1941 are in file RL 7-3/568.