Ideas for names for us?

Hi guys! My kids want to get a puppy. There is a dog down the road from us that just had a litter and we're getting one of those. Now the question is, what to name it? My kids are too young to pick anything other than Dora and Buzz Lightyear. Is Sophie a good name, or is it too used by humans to be a dog name? Any suggestions would be appreciated! Thanks! BTW, we're going to get a female.