I went to a Tequila Tasting event last fall at Remington Park. Here was my setup:
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I can't remember the brands that we tried, though I'm sure those who recognize the bottles on that sheet of paper can pipe in and put labels on everything.
Guessing from the pic, going left to right there were Corazon, Sauza hornitos, Maestro Doebbel (not sure here), Tres Generations, not sure, Republic Tequila