Shuck the corn and cut the kernels from 6 ears; collect them in a large mixing bowl.
Add 2 cups halved cherry tomatoes, 1 medium red bell pepper (small dice), 0.5 cup finely chopped red onion, 1 small jalapeño (seeded and minced), 0.5 cup chopped fresh basil, and 0.25 cup chopped flat-leaf parsley to the bowl.
In a small bowl, whisk together 0.25 cup extra-virgin olive oil, 2 tbsp apple cider vinegar, 1 tbsp freshly squeezed lemon juice, 1 tsp Dijon mustard, 1 tsp granulated sugar, 1 finely grated garlic clove, 1.25 tsp kosher salt, and 0.5 tsp freshly ground black pepper until emulsified.
Pour the dressing over the salad and toss until evenly coated. Let stand 10 minutes, tossing once, until flavors meld and the corn softens slightly.
Toss again, taste, and serve cool or at room temperature.