Sir,

You can use the universal primers like M13, R1, R2.

Dear Morteza

There is no such thing of the best primer for any species of bacteria. There is universal primers that used for specific bacterium and help you to have idea about what are the suitable primers for your experiment. The you have to design your own primers that give you the best accurate results. Alternatively, you can try big variety of primers and from the observations and statistical analysis you can determine the suitable primers for the bacteria that you dealing with

thanks