In a medium bowl, combine olive oil, adobo sauce, smoked paprika, garlic powder, cumin, onion powder, salt, and pepper to create a marinade.
Add the chicken thighs to the bowl, massaging the marinade into the chicken to ensure even coating. Let marinate for at least 30 minutes (or up to 2 hours in the refrigerator for more flavor).
Preheat a grill or stovetop grill pan over medium-high heat.
Grill the chicken for about 5-7 minutes on each side, or until fully cooked and charred with grill marks. The internal temperature should reach 165°F (75°C).
Remove the chicken from the grill and let it rest for a few minutes before slicing it into thin strips.
In the meantime, warm the corn tortillas on the grill for about 30 seconds on each side until soft and pliable.
Assemble the tacos by placing a few strips of grilled chicken on each tortilla. Top with shredded red cabbage, avocado slices, and fresh cilantro.
Serve with lime wedges on the side for squeezing over the tacos.
Notes
Marinate the chicken for longer for enhanced flavor.