Help with tire size

Hey everyone, I’m currently shopping for new tires but am having a hard time finding the recommended tire size for my 2003 SE. I am in Hawaii so the stock on island is really limited. The recommended size is P255/65R16 and nobody seems to have these in stock. I was told by some shops that they could do 265/70/16 or even 265/75/16.

I am not really a tire guy so was hoping you could help me figure out what the best move here is? Is there any risk to changing the size here? I think I current have 255/70/16 that the previous owner put on and was told before that they were oversized so I’m scared to replace with anything bigger.

Any advice would be welcome! Thank you!