I saw that you wanted flavors only so I deleted the recipe.
The two best Pumpkin Pie flavors IMO with descriptions are
Hangsen Pumpkin Pie- A full and lightly spiced pumpkin puree with light eggy cream notes but little crust.
Nature Flavors Pumpkin Pie- A full and heavily spiced (raw) pumpkin puree with heavy eggy cream notes with whipped cream and light crust.
Both are a bit difficult to mix with but when you get them right, oh man do they make a great pumpkin pie.