Preheat an outdoor grill to medium-high. You can also use a grill pan. Lightly grease the grill grates with oil.
Season the corn and the chicken thighs with salt and pepper.
Transfer corn and chicken to the grill; cover and cook for 13 to 15 minutes, or until chicken is cooked through and corn is lightly charred, turning chicken and corn once halfway through cooking.
Remove cooked chicken and corn from grill and let chicken rest for at least 5 minutes before cutting it into strips.
In the meantime, cut the kernels from the cobs and place them in a bowl. To the kernels, add 2 tablespoons lime juice, minced garlic, mayonnaise, Mexican cream or yogurt, and ancho chili powder; mix and stir until well combined. Set aside.
In a small mixing bowl make the dressing by combining olive oil, lime juice, honey, salt, and pepper; whisk until thoroughly incorporated.
Place the mixed salad greens and cherry tomatoes in a large salad bowl and toss with the dressing.
Top the salad with the corn mixture, chicken slices, and cotija cheese.