diapers shipping

So recently, I've had to move to a living arrangement that no longer supports being able to pickup diapers at my front door, and I was wondering if any of the sellers I'm gonna list are able to have their shipments diverted to a secure pickup location? And also, if anyone has any advice on any...

What is the best online place to get diapers from that had the lowest shipping cost for the U.S.? I'm in Alaska so it can be high sometimes.