Sorry for the completely random Youtuber recommendation, but
Any German-speaking fan of (Grand)Strategy and building Let's plays should check out "Steinwallen, Games and History"
https://www.youtube.com/channel/UCTmHYQZukLJUxQDLEmbjrWQ
He is playing Paradox Grand Strategy, old Strategy Games (like "Vicky 2" and "Imperialism"), builders like "Workers and Ressources", and other historical games.
Dude has a soothing voice and always explains the real-world history behind certain characters, nations and historical events.
He also Roleplays his Let's plays often, where he, (for example in Crusader Kings), decides on what to do based on the characters traits and history between other characters and nations and not what is the best to do in regards to game mechanics.