CivitAI, but you'll have to make an account, and you have tokens(buzz) that limit how much you can generate everyday. Use Pony Diffusion V6 XL and add the No Artist Style LoRa, specifically Smooth 2. It will get you close to the original art work.
Alternatively, use whatever you want if you don't care about the style difference. You can use Perchance's furry generator, then find some website that will let you upscale it and remove the background for free. Probably, everyone's best option at the moment.