How can I get a list of all the male athletes competing in the Olympic
Games 1936 in Berlin ?

One way to get this list is to post a well-priced well-posed question
on this very service.

Here is my suggestion on how to pose the question in order to elicit
the information:

What are the names and countries of all the male athletes that
competed in the 1936 Olympic Games in Berlin?

You would probably want to price your question at around $10 in order
to attract a researcher and help them feel motivated to give you a
higher quality answer.

pafalafa-ga know how to get this info. Just ask him/her.