You'll want fursuit paw making tutorials.
Theres a bundle of tutorials and tips on here.
You basically get a soft shoe ( like a slipper, Plimsoll) and stick foam toes on it. Then you cover with fur, which can get a little tricky. You might need to make a pattern from the shoe with some ductape first.
I believe you can also make them with socks. More flexible but not very durable.