Looking for a adult female cinnamon 100% het piebald

All I can seem to find are babies

We can’t recommend certain breeders but I can give you this link here, these are sorted by oldest first. There’s a pretty good selection here but if you don’t find anything then you might have better luck getting the oldest one you can find and raising it up, adult females are going to be the most expensive so if you have a budget then you might want to get a younger one.