Not sure if you would consider garlic bread a spread, but if you do, this is one of my favs…
Mince a few cloves of garlic, and mix mayo and paprika for a light salmon color, and refrigerate for one hour.
Butter sliced sourdough bread, add a good coating of above, top with parm and bake on a cookie sheet at 350°F for 10 to 15 minutes.