Most probably

one guide or two will be around at the entrance looking for tourists to come in. The guy seemed to be knowledgeable, but we did not ask him to work for us only as we were with our Indian colleagues who knew the place very well. I myself would prefer hiring one who is around at the site rather than hiring one from a travel agent, etc. However, as the other reviewer tells, we have to be careful in negotiating for the proper price.

It depends on the month of your visit , number of persons , size of the group and their age. If temperature is moderate it is prefer to take tuktuk locally..... pay 3/4 of what ever asked for fare.... don’t book full day or half day tour.. it is only two to three hours tour

plenty of guides around the place rates too are negotiable

Bodh gaya

You must be referring to an auto rickshaw commonly called autos all over India. They are very plentiful in the city of Varanasi and probably the best means of transportation in this very crowded and chaotic city. How the driver would get his services listed on Trip Advisor, I would not know. Usually, Trip Advisor only lists hotels and eating establishments and local sights etc.,

make a website or a forum for him . can he read and write english ? does he really need help ? ... i dont think so :)

maybe you can find the number of the museum oposite the temple.