Place the chicken, olive oil, honey, minced garlic, chopped chipotle chiles, chili powder, smoked paprika, cumin, and a generous pinch of kosher salt and black pepper into a large gallon-size zip-top bag. Seal and massage to coat the chicken, then chill for at least 1 hour or up to 12 hours.
While the chicken marinates, preheat the broiler to high and line a baking sheet with parchment.
Add the peeled tomatillos and quartered peaches to the prepared baking sheet and broil 3–5 minutes, turning once or twice, until the tomatillos are mostly charred; remove and let cool slightly.
Transfer the charred tomatillos and peaches to a blender or food processor. Add the seeded chopped jalapeño, 1/4 cup cilantro, 1/4 cup basil, juice of 2 limes, and salt to taste; blend until mostly smooth. Transfer salsa to a jar and refrigerate until serving.
Heat a grill, grill pan, or skillet over medium-high. Remove the chicken from the marinade and grill until lightly charred and cooked through, about 10–12 minutes total, turning occasionally.
Transfer the cooked chicken to a cutting board, rest 5 minutes, then slice thinly against the grain or shred.
Warm the flour tortillas and hard taco shells. Spread a little guacamole on each warmed flour tortilla, wrap it around a hard taco shell, then fill with sliced chicken, peach-tomatillo salsa, shredded cheddar and crumbled cotija. Top with grilled corn (if using), cilantro, and microgreens.
Serve immediately.