Hey guys! Hope you're having a wonderful night
So I am trying to get a puppy now, but I have a concern about puppy's size. I personally prefer chubby babies that are able to grow to 8 lbs or so

(no super tiny ones!). I have been contacting different breeders, and there's one baby I just fell in love with immediately!

But she will only grow to no more than 5 lbs.. I am wondering if those size puppies are less healthy and more likely to be sick? or they are just in a normal size range like we humans do.
Thank you very much!!!! Love you all and all your puppies ^^