Forget Tequila and go for Mezcal, which is another spirit distilled from agave, but with a different process leading to a smoother, sweetish drink which can be enjoyed like a fine single malt whiskey. The ones to go for (in my opinion) are the reposado (aged for 2 years) or the anejado (aged for up to 7 years in barrels of white oak). Salud!