Well for starters VW already has a whole host of accessories so if you haven't started there, I suggest you do, and odds are your dealer has some on display for you to see.
Let us know what you're looking for.
I've ordered a Proclip cellphone holder - you specify the phone that you have, and get a specific holder for that. Then, you specify the vehicle and they send a mount designed for the vehicle. For the Atlas, they offer two locations. The mount is on backorder, expected this week, so I haven't received it yet. These are really good, and allow you to angle the phone the way you want - this will be the fourth vehicle I've bought for. proclipusa.com