Hi b3422,
You might find something suitable in the Kicad footprint library. Opto devices could be a good place to start.
Failing that, you may find something in a Kicad library suitable to modify to your needs and failing that, you could always build a footprint from scratch.
There is lots of information in FAQ at the top of this page.
Maybe start with:https://forum.kicad.info/t/tutorial-how-to-make-a-footprint-in-kicad-5-1-x/11092