The one commercial puff pastry I have tried is Dufour, which is all butter. . .
Dufour is good, all butter, but hard to find in my area.
I have heard Pepperidge Farm makes a puff pastry (and I can find it on their website) but I have never seen it, but I have never searched for it. I see on their website that it is NOT made with butter.
Some of the ethnic markets, middle eastern and such, carry puff pastry in pre-cut squares and sheets, but it is made with margarine. I have had it and it is tasty, and puffs well.