
You might consider a Whippet which is a very low-maintenance breed. However, like all hounds, they don't do well spending long hours alone. And they must have a fully contained, sizeable area outside for a daily 'blast'. Or the ability to run when out off their property although not all can be safely let off their leads. I switched a while ago now, wanting something lighter in weight and taller. I did know a bit about the breed, via my neighbour at the time, who had a number of them over the years. She doesn't eat much these days, doesn't smell at all, and her coat needs minimal attention to keep it looking shiney. They aren't as fragile as they might appear much as care should be taken through the puppy stages. Certain they are much tougher than It Greyhounds.
If you are really undecided, why not go to your local Shelter? There are always dogs in there, some quite young, waiting for a second chance of a permanent loving home.
Terriers - yes, much as they are very energetic and need training!