I am playing in german because Im just used to it and its so much more immersive for me. I have installed a few really good mods that are also pretty immersive and dont change much on the language part.
But its getting harder for me to find these kinds of mods, alot of them add new characters or dialogue as a side effect or randomly change names of certain places and stuff.

Im especially looking for mods for more different and unique looking npcs, nature mods or mods that improve certain mechanics in the game but all of that without greatly changing the language.