Make chicken marinade by combining all marinade ingredients in a bowl. Add chicken breast and refrigerate for at least 1 hour or up to overnight.
Preheat the grill over medium-high heat.
Remove chicken from marinade and place on the hot grill. Cook for about 5-6 minutes on each side, time may vary depending on thickness of chicken breast, (thickest part of the chicken thigh should register about 165 degrees F).
Transfer chicken to a plate and allow it to rest for a few minutes before chopping into small pieces.
Warm tortillas on the grill, or skillet on the stove, for a few seconds on each side. Top with chopped chicken, pico de gallo, cilantro, hot sauce, sour cream, pickled red onion, or desired toppings. Serve with a lime wedge for squeezing on top.