Here is a list of online Dutch archives (non-exhaustive):
Ministry of Defence:
https://nimh-beeldbank.defensie.nl/
Library of Zeeland:
https://digitaal.dezb.nl/beeldbank/
Collectie Nederland:
https://data.collectienederland.nl/
Image bank NIOD:
https://www.niod.nl/en/imagebase-ww2 - refers to Image bank:
https://beeldbankwo2.nl/en/
home page for archival research:
https://www.archieven.nl/en
Find some more via
https://www.tweedewereldoorlog.nl/ke...nen/archieven/
Only some have an English language version, but searching should be intuitive.
Enjoy!
Hanno