Destroya

So, my family is going on vacation to Virginia this summer and we have 5 people to bring + all of our stuff, and we won’t fit us and all of our stuff in our current car, so my Grandma looked at some SUVs to rent, and there was a Ford Flex that was $579 to rent for the week, and she said that would be too expensive, so, does anyone have suggestions for SUVs that are cheap to rent, preferably with 3 rows and decent cargo space behind the 3rd row? 3 rows because it’s a 6-1/2 hour road trip from New Jersey to Virginia and we don’t feel like cramming 3 tall people next to each other.
Any help would be appreciated, thanks!