These Sarahs are as hot as the hottest day in the summer. Man, you should at least give each's gallery a good look before choosing.
Sarah Kohan is an Australian model/celebrity and travel blogger who is most famous for her Moonstruck Traveler account on Instagram. As a model, she has walked for various brands like Kaohs, and Frankie and is under representations from Elite Model Management. Read more about her in this Sarah Kohan article.
Sarah Brandner is a German fashion model who is notable for her work for GQ Germany and Sports Illustrated. She is perhaps most famous for her seven-year romantic relationship with German soccer midfielder Bastian Schweinsteiger. Learn more about her in this Sarah Brandner article.