Soak the calamari rings in buttermilk for about 15 minutes.
In a bowl, mix flour, paprika, garlic powder, salt, and pepper.
Heat vegetable oil in a deep pan over medium-high heat.
Remove calamari from buttermilk, allowing excess to drip off.
Dredge each ring in the seasoned flour mixture.
Carefully place the coated calamari in the hot oil, frying in batches.
Fry until golden brown, about 2-3 minutes per side.
Remove with a slotted spoon and drain on paper towels.
Serve immediately with lemon wedges and dipping sauce.
Garnish with fresh herbs if desired.