Such an open-ended question. Sort of like me asking, "I have several in mind, but wouldn't mind a brainstorm from the experienced out there! Looking to purchase a vehicle with 6 seats...." There are dozens of different cars/vans/trucks out there that would fit this description, from a hacked out 1980's Dodge Caravan to a limousine.
To get a real answer on a forum like this, you need to specifically define your goals. I mean... you didn't even mention a budget. Take a trip on
www.controller.com and see what is out there first. Then you can come back with more specific questions, and get some solid answers.