If the anime was never completed, Then you're in luck. You can continue the story by reading the completed manga. This list has basically the same rules as a couple of my other ones, includes anime originally based on a manga, no...
This list is anime titles which features bunnies, rabbits and bunny-related themes, motivs or simple short cameos. Every occurence will be noted as I encounter from starting from 2020 or as I remember them. The more badass...