Sasha Braus is the best romanization I've noticed for her name. Sasha's surname is ブラウス. That can be read as Blouse or like the surname Braus. Browse is written as ブラウズ. Browse is not a surname, and according to both the Attack on Titan/Shingeki no Kyojin wikia as well as the manga, it is Braus. I believe her tag should be changed to reflect this.