Any travel agency to regulate transport from Guangzhou airport when tourists landed

I am not clear which travel agency offers such service. If you mean Shaoguan, to get there by hig-speed train, you have to catch the train at GZ South Train Station, which can be reached by taking shuttle bus line 1 to the terminus near GZ Railway Station and then transfering to local subway line 2. No need to book the transportation and it is very easy to catch upon arrival.