Sighthounds are a classification of dogs (like Terriers, Toys, or Herding dogs) that were bred to hunt by sight; being hunters, they also tend to be long-legged and agile. Here's a list of the tallest, splindliest, most oddly-proportioned dog breeds that deserve your love:
1. Greyhounds
These skinny dudes are the O.G. sighthounds, having origins as far back as 4,000 years ago, in Ancient Egypt. Surprisingly, they make fantastic apartment dogs if you let them run regularly. Due to the greyhound racing industry, they're widely available for adoption!
2. Borzois
Borzois are also known as Russian Wolfhounds, and they're good at hunting but bad at being guard dogs. They are perhaps best known for looking strange and making for fantastic memes.3. Scottish Deerhounds
This breed of dog was cast in two Harry Potter films to play Sirius Black's animagus form, Padfoot. They are one of the tallest dog breeds out there and have a very fairy tale (or wizarding world) vibe going for them.4. Salukis
Also known as Persian Greyhounds, these dogs were originally bred in the Fertile Crescent. Despite their designer appearance, they were actually pretty good at nomadic hunting (even though they may not do much of that today).
5. Irish Wolfhounds
These dogs are a shaggier cousin of the Scottish Deerhound, and were bred for the far more badass purpose of hunting wolves. The average height of an Irish Wolfhound surpasses that of a Great Dane.
Bonus Mutts: Longdogs and Lurchers
I originally found these terms on Wikipedia, but had to search around to make sure they weren't part of some elaborate joke. However, these dogs and their nicknames are (thankfully) very real: "longdog" refers to any cross between sighthounds (of which all five of these breeds are), like a Greyhound-Deerhound mix, and "lurcher" refers to a sighthound mixed with a working dog, like a Saluki-Terrier mix.
Remember, adopt don't shop! Many of these breeds and mutts are available for adoption from both national and regional organizations!