Since the first Vermintide I’ve had a craving for anything rat-related. Here are some things I’ve watched or played, which have a similar feel. 
I was hoping to also get some suggestions. I’m yet to read any books about rats or mice (Warhammer books included).
Films:
The Secret of NIMH
https://www.imdb.com/title/tt0084649/?ref_=nv_sr_1
The Great Mouse Detective
https://www.imdb.com/title/tt0091149/?ref_=tt_rec_tt
An American Tail
https://www.imdb.com/title/tt0090633/?ref_=ttls_li_tt
Redwall
https://imgur.com/a/A0yUxOB
https://www.imdb.com/title/tt0306008/?ref_=nv_sr_2
Series:
Redwall
Includes Cluny The Scourge, one of my favourite villains of all time. I can only hope someone from FS watches it and adds him as a lord. Well worth the watch if you’re looking for something a little silly. May or may not be on YT. 
https://www.imdb.com/title/tt0200369/?ref_=nv_sr_1
Games:
Ghost Of A Tale
Played this very recently. It’s a gorgeous game with an interesting story and world. Did have some trouble with bugs, but I’m happy bought it. The rats do use halberds too.
