Here's a video when I mount roof racks on my wagon. Thought if anyone needs inspiration. Selected thule classic bar.
Mostly because of the price but also think they are quite simple and nice. However, got a light wind noise from the front railing.
Will try to adjust it and see if there is any difference. Someone who knows the original measure for the racks?

Looks nice. I use the MB OEM roof cross bars on my wagon and have had no noise issue.

I have a set of the oem roof rack and I do not have a noise either when I use them.

Good tho hear. Hope adjusting them a bit will take away the windy noise on mine, anyway its not that noisy.

How do OEM Racks looks on wagon, is it the same roof racks as the sedans have?

It's slightly different than sedan as the sedans don't have the rails. It's definitely not low profile, stands up quite a bit. but doesn't seem to cause any wind noise issue.

After one year of use and still use them now in winter I got my led bar mounted on top of the rail and really pleased with this rails love the classic looks.
That wind noise has gone away don't know why, can recommend this