I've never dealt with roof racks of any kind in the past. Not for Suzuki nor for any other car. That's why I'm having a hard time finding what will work for my Aerio '06 SX (5 door wagon).
I understand, that the product recommendations are very likely to be off-topic here, so the question is focused on How to find the rack that can be installed correctly (onto the designed mount points) and what to watch out for?.
What I'd like to get ideally, is the roof bars(?) that go across the roof and use the factory installation mounting points instead of any alternative system. I am planning to put two 2x4s along the car on top of the bars so that I can transport a couple of plywood sheets from my local lumber store.
Update. My local Suzuki dealership was purchased by a competitor, so the staff is a bit less knowledgeable then they used to be. The parts department employee told me the "native" crossbars have been discontinued by the manufacturer.