Just like my recommended movies list for Watership down lovers here is for tv shows. Not as many things compared to the movie list, but still some shows you can check out.
Animals of Farthing Wood
Ginga Nagareboshi Gin
Ginga Densetsu Weed
Wolf's Rain
Over the Garden Wall
The Lion Guard
Pokemon Origins
Folly Cooly
I heard about red wall too but I haven't watched it yet