Green Arrow (DC Comics)/ Hawkeye (Marvel Comics)
DC and Marvel have many copy cat characters. These two are expert archers with gadget arrows. So any expert archer in the real world could be them.
The Question (DC Comics)
This detective is a journalist with a thing for conspiracies. He is a zen master as well. Any person who believes in the Illuminati and practices journalism can be The Question.
Huntress (DC Comics)
This detective uses a crossbow to take down bad guys. Any expert shooter can be Huntress. Experts in martial arts also can be her.