Do you know a tour and guide for the forbidden city and can you get there by bus or train?

Yes. You can take subway line 1 and get off at Tiananmen East Station, exit from Exit A and then walk north to the south gate of the Forbidden City. Or you may take subway line 2 and get off at Qianmen Station, get out of the station from Exit A and walk north to the museum. Bus no. 1, 2, 52, 59, 82, Tourist Line 1 and Tourist Line 2 can also take you there. If you need a private guide and private transfer, you can contact the agency for more information.