My great-grandfather Oberfeldwebel Jakob Most

Over the christmas holiday I was talking to my grandmother about her father, Jakob Most. Looking at an old picture she had of him, I asked her what that cross that around his neck specifically was. Apparently, my great grandfather Jakob Most was awarded the Ritterkreuz des Eisernen Kreuzes during WW2 during the fall of 1944 (as far as I can tell and could gather from online sources), e.g., here https://www.tracesofwar.com/persons/50519/Most-Jakob.htm The Ritterkreuz was stolen from him later in life.
Would anyone here, by chance, know where to find more information on or how to go about it all?

I am mostly just curiuous about his history and want to get to "know" him more. I am of course aware of the implications of him earning a Ritterkreuz and several other Nazi - military awards. In no way glorifying the Nazis.

He only died in 2001 and I have a few memories of him. I was honestly quite surprised to find any information on him online.

Disclaimer - I know my Opa was a Nazi.