Here are some tasty pumpkin pie topping ideas—from classic to a little more festive:

Maple whipped cream — whipped cream sweetened with maple syrup and cinnamon.
Salted caramel pecans — warm caramel, toasted pecans, and a tiny pinch of sea salt.
Cinnamon streusel — buttery brown-sugar crumble with cinnamon and chopped walnuts.
Candied pecans — crunchy cinnamon-sugar pecans piled over whipped cream.
Gingersnap crumble — crushed gingersnap cookies with whipped cream and caramel drizzle.
Toasted coconut & pineapple — a fun Hawaiian-style topping with toasted coconut, pineapple pieces, and whipped cream.
Apple-cinnamon topping — sautéed apples with brown sugar, cinnamon, and butter.
Chocolate pecan — chocolate shavings, toasted pecans, and chocolate drizzle.
Cranberry-orange — tart cranberry sauce with orange zest for a colorful holiday twist.
Pumpkin spice cream — whipped cream dusted with cinnamon, nutmeg, ginger, and pumpkin spice.
Praline topping — brown sugar, butter, cream, and pecans cooked into a rich praline sauce.
S’mores pumpkin pie — toasted marshmallows, graham-cracker crumbs, and chocolate drizzle.

For a showstopper holiday pumpkin pie, I’d combine maple whipped cream + salted caramel + candied pecans + a light cinnamon dusting.