Preheat oven to 400°F (200°C).
Pat salmon fillets dry with paper towels. Remove pin bones if necessary.
Cut foil into 12-inch squares and lightly oil them.
Place salmon fillets skin-side down on the foil.
Season with salt, pepper, garlic, and herbs. Drizzle with olive oil.
Top with lemon slices and optional ingredients for extra flavor.
Seal the foil packets tightly, leaving a small air pocket inside.
Bake at 400°F for 15-20 minutes until salmon is opaque and flakes easily.
For crispy skin, open the foil and broil for 2-3 minutes.
Let salmon rest for 5 minutes before serving.