Search for "KAN-15", there are many sellers. This is the one I ordered from:
https://www.aliexpress.com/item/32818559623.html

Get the 3D printing files from here:
https://www.thingiverse.com/thing:4592896

Any filament should work fine, I just used white PLA.

If you use KiCad, download and add my KiCad library so you have access to all the prebuilt footprints and 3D models.
https://github.com/jgillick/KiCad-library

• SMD: SW_KAN-15_SMD
• Through hole: SW_KAN-15_PTH