Ordinary buddhas, bodhisattvas and arhats can all worship, and there is nothing too particular about it. The practitioners of Mahayana Buddhism are full of positive energy.
If we must pay attention to it, Guanyin Bodhisattva is the most suitable for China people. It is said in Hokkekyo that when a disaster happens, you can save the day by reading Guanyin Bodhisattva.