what is best way to go from szx airport to shangri-la hotel in four passengers and luggage

There are two Shngri-La Hotels in SZ. If you refer to the one at Futian, you can take the airport shuttle bus line 9 and get off at the Convention Center. Then walk about 550 meters to your hotel.

If you will stay in the one at Luohu, you can take shuttle bus 330 to Luohu Railway Station. Then you can walk around 800m to the hotel.