A great Christmas Santa story is about a little boy who was on Santa's naughty list but through his good deeds at the last minute, he got on the nice list. Santa Claus in many stories is depicted as having magical powers that allow him to fly around the world in one night, delivering presents to all the good children. He has a big belly from all the cookies he eats at each stop and his red suit is a symbol of Christmas cheer.
One popular story is 'The Night Before Christmas'. It vividly describes Santa's visit on Christmas Eve. Another is about how Santa started making toys for children all around the world. And there's also the story of Santa choosing his reindeer.