How to find good broker/firm to start with?

[Paris Snow]

Hi 

Im about to be real estate agent in San Francisco, Bay Area. Can you share/help me if there any tips or any firms that has good training that i should look into it? Should i start with big firm or a local smaller firm? 
Im vietnamese and i can speak both English and Vietnamese as bilingual.

Much appreciated your sharing. Thank you for attention. 🥰