Animatronics like the ones created for the cristal wolves but never used in the finished movie and then in full CGI ?
The animatronic foxes are seen in the film. You couldn’t really expect them to use an practical creature for when they are walking/ running. The Canto Bight Fathiers are fully animatronic ( no cg enhancements) when in the stables and in close ups. They only used CG for the running ones.