Jax Beastbot is weird astromech like rabbit thing part of the Power Ranger’s Beast Morphers line made by Hasbro in 2019. It is actually part of a 6″ scaled line but is about the same size as a Star Wars Astromech Droid.
Readily available in most retail stores still. I got mine at Target. Amazon is another easy way to pick this little droid up for about $8-$9 or in a set with a 6″ Yellow Ranger for about $13.