You can grill the chicken seasoned with chili powder, cumin, and lime or saute in skillet with olive oil and seasonings. until cooked through. Slice or shred for tacos and keep warm.
Make the street corn topping: Combine all ingredients into bowl and mix well.
Assemble the tacos: Place some seasoned chicken on each tortilla, add a generous spoonful of street corn mixture. Top with avocado and fresh cilantro