Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper.
In a shallow bowl, mix together the flour, salt, black pepper, garlic powder, and paprika.
In another bowl, whisk the eggs until well beaten.
In a third bowl, place the panko breadcrumbs.
Take each chicken thigh and coat it in the flour mixture, shaking off any excess. Dip it into the beaten eggs, then coat it with panko breadcrumbs, pressing gently to adhere.
Place the breaded chicken thighs on the prepared baking sheet. Bake for 25-30 minutes, or until golden brown and cooked through (internal temperature should reach 165°F).
While the chicken is baking, prepare the sauce by mixing together the mayonnaise, sweet chili sauce, sriracha, and lime juice in a bowl.
Once the chicken is done, remove it from the oven and let it cool for a few minutes. Drizzle the sauce over the chicken or serve it on the side for dipping.
Garnish with chopped green onions before serving.