There are many sodas that can be mixed with tequila, depending on personal preference. Some popular options include:

• Lemon-lime soda, like Sprite or 7-Up
• Club soda
• Coconut soda
• Orange soda
• Grapefruit soda
• Ginger beer

These sodas can be mixed with tequila in a highball or collins glass with ice, and garnished with a citrus wedge or other appropriate garnish. Some people also enjoy mixing tequila with plain soda water or sparkling water for a lighter, less sweet option. Ultimately, the best soda to mix with tequila will depend on individual taste preferences.