Just find a happy mongrel.
The ideal dog is medium sized, short coated, with everything average: no short noses, hairy ears, whippy tails, stubby legs or sloping backs or heavy build or inbred.
If you want a breed and can cope with grooming, excercise, problems etc and want a 'statement' dog then personal cheerful favorites to consider: dalmatian, english setter, retriever, nova scotia duck tolling retriever, border terrier, standard poodle, airdale, english pointer....