How to draw a hero
The classic hero is the good looking sort, drawn in a realist style, that is found in the majority of types of comic. The example below is very characteristic of the classic hero of Franco-Belgian comic books, but only minor modification are needed to turn it into a classic manga or comic book hero.
First, find a posture for him that is somewhere between elegance and relaxation. He should be proud, but without his pride being too exaggerated.
Then choose anatomic structures in accordance with the hero, perhaps a square jaw and athletic body that's not too muscular either.
Then dress him in a shirt and trousers while respecting both his chic look and laid back attitude.
To keep to the Franco-Belgian tradition, I would finish the drawing off with an elegant, clear line, but you are free to choose a different option.