Based on this product's specifications, here are some alternatives and similar models
Camera Clip POLAROID 6156 for Polaroid Go instant print camera — black, metal/nylon, 60×13 mm
Summary description:
Clip-style camera mount POLAROID 6156 designed for the Polaroid Go instant print camera. Constructed from metal and nylon with a black finish, it measures 60 mm wide, 13 mm high and weighs 24 g. Provides a compact attachment solution for securing the camera to straps, bags or clothing for hands-free shooting and easy access during travel.