Hey @Kristine303831,
Welcome to the forum!
The motor has a 37 mm outer casing, so any bracket designed for that size should work. A good option is something like this clamping mount: 1400 Series 1-Side 2-Post Clamping Mount – 37 mm Bore
Other brackets may work too, but be mindful of the mounting hole patterns as they can differ between gearmotor models. If you’d like to use a different type of bracket, look for ones made specifically for 37 mm motors with a compatible hole layout, rather than the stamped Pololu version (as its mounting holes don’t align very well with this motor).
