Prepare shrimp: Pat shrimp completely dry with paper towels. Season lightly with salt and pepper. Set aside.
Make garlic butter: Combine softened butter, garlic, parsley, basil, oregano, lemon juice, lemon zest, red pepper flakes, salt, and pepper in medium bowl. Mix thoroughly with fork.
Preheat broiler: Position oven rack 6 inches from broiler. Preheat broiler to high.
Sauté shrimp: Heat oven-safe skillet over medium-high heat. Add half the garlic butter. Once melted and sizzling, add shrimp in single layer.
Cook shrimp: Cook 2 minutes without moving. Flip and cook 1-2 minutes more until just pink and barely cooked through.
Add wine: Pour white wine into pan, swirling to combine. Let bubble 30 seconds.
Add remaining butter: Remove from heat. Add remaining garlic butter, stirring to melt. Arrange shrimp in even layer.
Top with cheese: Sprinkle shredded Havarti evenly over shrimp. Top with grated Parmesan.
Broil: Place under broiler for 3-5 minutes, watching carefully, until cheese is melted, bubbly, and golden brown in spots.
Garnish and serve: Remove from broiler (handle will be hot). Garnish with fresh parsley. Serve immediately with toasted baguette slices and lemon wedges.