Does anyone know where I can get some sugar free cookie recipes?

I’m wanting to bake some cookies for my grandfather who was recently diagnosed with cancer. Cookies are one of his favorite sweets but unfortunately he’s a diabetic so I have to make sure they’re sugar free.

I’m having a hard time finding recipes for sugar free cookies. Does anyone know of a website that has sugar free recipes? Or do you have a recipe that you’d mind sharing?

Thank you so much for you help!