Desiccant for Moving board games across the US?

I'm moving around 300 board games (and books and other fun paper things) across country and they may have to sit in temporary storage. I think I want to include some desiccant in case of moisture, but there's a ton of options in terms of material and size. Does anyone have recommendations of what process to use to keep games dry and as safe as possible if they're packed in plastic totes?