You will arrive very early and may want to get some breakfast. I am only good at finding excursions from a port and not the airport. Have you considered renting a car for all of you and then doing a self-guided tour? Of course, then after returning the car, you would need to arrange for a transfer to the ship.
For me, I am a worrier and would just get through the airport and take the transfer to the port. Typically, we are on Princess and would be able to board about 11:00 am and enjoy the ship. But then again, we never arrive on cruise day, especially after flying.