Here are the STL files to 3D print your own visor clips. There is one socket and several versions of the clip. The versions of the clip are slightly different sizes. Print all sizes and determine which one is the best friction fit.
Note that these files are intended to be printed on a resin printer, such as the Anycubic Photon. Note that PLA won’t stand up to the heat found inside a car.
Download the zip file (free to use but no commercial usage).