Hi, is there any bus or subway that will take me from the Guangzhou Baiyun Airport to the Holiday Villa Hotel?

The airport provides the shuttle bus to the airport, but I am not very sure, so it is suggested to consult the airport directly. For public transportation, there is no direct subway or bus to your hotel.
From the airport to Chimelong, you need to take the subway line 3 (North Branch) to Tiyu West Road Station and then change to line 3 to reach Hanxi Chimelong Station directly. Then use the shuttle bus to your hotel.
From the south railway station, you can take walk to the GZ South Bus Station to take the bus line 303A to Hanxi Chimelong Station. Then use the shuttle bus to your hotel.

thank you, Morris! God Bless..