Tour guide for Normandy?

https://www.google.com/search?q=battlefield+tourguides+in+Normandie%3F&ie=UTF-8&oe=UTF-8&hl=en&client=safari&dlnr=1&sei=9gswZNW-JJKcptQPtYqxiA4

Google gives you a broad view of what’s available. Perhaps see what you find interesting and ask for opinions here. If you want a private tour be prepared for a more expensive experience.

This is who we used and he was very good!

https://www.firstnormandybattlefieldtours.com/tour-guide

Check the website for The Federation of Normandy Tour Guides:

https://normandyguides.com/

You may find Search terms like "D-Day Beaches" or "Invasion Sites" to be more useful. Normandy is a very large province of France.