Heat oven to 400°F. Line a rimmed baking sheet with foil and lightly oil it.
Pat salmon dry. Place fillets on the sheet, skin-side down, spaced slightly apart.
Whisk olive oil, melted butter, lemon juice, zest, Dijon, honey, garlic, salt, pepper, and paprika.
Spoon the mixture over salmon, coating the tops evenly.
Bake 12–15 minutes, until the salmon flakes easily and is just opaque in the center.
Rest 3 minutes. Sprinkle with parsley and serve with extra lemon if you like.