In a medium bowl, whisk together the Sriracha sauce, olive oil, honey, lime juice, garlic powder, salt, and black pepper. Add the shrimp and toss to coat. Marinate for 15-30 minutes in the refrigerator.
Preheat the grill to medium-high heat.
Thread the marinated shrimp onto the soaked skewers.
Grill the shrimp skewers for 2-3 minutes on each side, or until they turn pink and opaque. Remove from the grill and set aside.
In a large bowl, combine the collard greens, peaches, red onion, and feta cheese.
In a small bowl, whisk together the apple cider vinegar, olive oil, salt, and pepper. Pour the dressing over the salad and toss to combine.
Serve the grilled shrimp skewers alongside the collard-peach salad.