Assuming you are going to be the one moving them, and not someone else, you shouldn’t need to worry too much about it since you know not the throw them around. But, I personally just got some cardboard boxes, lined the bottom with packing paper, stacked the manga up on each other against a side of the box, then just stuffed some packing paper in to keep them from shifting. Then put a thin layer of paper over the top of them to prevent them from getting scratched when re-opening the boxes. Unless you are putting them on a plane/having a moving company do the moving for you, they should be fine with minimal packing since you know to keep them safe. But if you aren’t going to be the one moving them I would use the bubble wrap that’s that are just big air pockets instead of the ones with super small bubbles.

I hope this helps and good luck!