The brand of tequila I used for this margarita is Don Julio Blanco. It is important to use high-quality tequila when you are making any kind of tequila-based drink because more expensive tequilas will taste much smoother than their cheaper counterparts. If you like a smoky taste, one of my favorite substitutions for this cucumber margarita is to use a Mezcal instead of a normal tequila. Mezcal is made from a bunch of different agaves which give it a smoky and super tasty flavor profile.