One could use a baking grill that has fairly narrow spacing so that fries don't slip/fall through. There's also some baking mats that might work, but i'd be worried of fries rolling off when handling the mat to/from the oven.
This crisper pan looks interesting but it's use case seems a bit too narrow for me to consider. It's most likely useful for people that do use their oven more often, or they entertain a lot or have kids and have a need to make a lot of baked fries and the like. I've been pretty happy using some metal baking trays for fries.