Lap Dog vs Exercise Dog
Small vs Large
Light Molting vs Heavy All-Year Round Molting
Lazy vs Energetic
Family Dog vs Solitary Dog
Fur length/Grooming needs
Amount of food they will need?
The list goes on and on, if you know the basics in a dog you want, and how much you can afford for food, veterinary bills, etc then you can get a better idea of a dog that will suit you.
Remember a dog is not a right, a dog is a luxury. There are things which happen and can cost a lot in veterinary bills. Particular breeds a predisposed to conditions that may also cost you lifelong medical costs.
The best way to decide on the right pooch for you, is to talk with a Veterinarian or Veterinary Nurse and friends with dogs. They can determine what type of dog will suit your lifestyle, so you don't choose a dog that can't handle your lifestyle and therefore be naughty or cost you a fortune.
This also enables you to learn about potential conditions that are breed specific. Plus the Veterinarians will know of good breeders where you won't get a half breed or sick dog. If we don't support the bad breeders, backyard breeders, puppy farms and pet shops, then gradually they will decrease in numbers due to poor profit, and save potential owners from buying what may be an unhealthy pup.
Once you know a few breeds you would be happy with, do some personal research on them, ask anybody you know with that breed, have a look at some down at the shelters, get to know the likely personalities.
Finally before getting a new dog, make sure you organise everything you will need:
(Always allow for the growth of the dog)
Lead (and Harness for toy dogs)
Food and Water bowls
Bag of Food
A collection of Toys (Wash without soap before use)
Dog Brush (Suitable for particular fur coat)
Dog seatbelt for car/Dog carrier
Training/Toileting pads for pups
Jacket/Coat for cold nights (May need to purchase with dog for correct size fitting)
Ensure backyard/front yard area is well enforced so dog cannot run away
Keep money aside for Vaccinations, Worming, Micro-chipping, Council Registration and Sterilisation.
Good luck looking for the right pooch!
Remember to look in newspapers, the quokka, animal shelters, and certified breeders before looking in pet shops, puppy farms and backyard breeders.