Meanwhile, in a large bowl, mix to combine the garlic, jalapeño, and a large pinch of kosher salt. Add the lime zest, lime juice, sour cream, mayo or Greek yogurt, and white wine vinegar and whisk to combine. Add the avocado, cucumber, tomatoes, red onion, and cilantro and toss gently to combine.
1/2 cup english cucumber, 1 cup cherry tomatoes, 1/2 bunch cilantro, 1 lime, 1 avocado, 1/2 red onion, 1 clove garlic, 1/4 teaspoon kosher salt, 1/2 cup sour cream, 1/4 cup Greek yogurt or mayonnaise, 1 jalapeño, 2 Tablespoons white wine vinegar