Hero in Chinese / Japanese...

英雄 is the best way to write hero in Chinese and Japanese - especially for calligraphy.

英雄 is also the name of the Chinese movie titled Hero starring Jet Li.

The first character means brave (it can also mean British or English but not in this case).
The second character means heroic but also suggests a male person.
My Japanese dictionary also defines this as “a great man.”

英氣 is a way to write heroic spirit in Chinese.

This may be an arrogant thing to hang on your wall.

雄心 are the Chinese characters and Japanese Kanji for great ambition, lofty aspiration, or heroic spirit.

豪氣 is heroic spirit or heroism in Chinese and old Korean Hanja.

This might come across as a bit arrogant to hang on your wall.

傑物 is a Japanese title that can mean “great man,” “heroic figure,” or “remarkable character.”

You would be giving someone a great honor by presenting this wall scroll to them as a gift.

女傑 can mean brave woman, heroine, lady of character, distinguished woman, outstanding woman, and sometimes prominent woman.

Some people might use this to give a title to women like Amelia Earhart, Rosa Parks, Queen Elizabeth the First, Joan of Arc, Mulan Fa, Yevdokiya Nikolayevna Zavaliy, Harriet Tubman, Anne Frank, Clara Barton, and Jane Eyre.

I use it for a woman like Araceli Segarra (the first woman from Spain to climb Mt. Everest) and gave one of my daughters the middle name of Araceli.

僕のヒーローアカデミア is the title “My Hero Academia” or “Boku no Hīrō Akademia” in Japanese.

Note: Because this selection contains some special Japanese Katakana characters, it should be written by a Japanese calligrapher.

巾幗英雄 is an excellent and somewhat ancient way to say woman hero in Chinese. 巾幗英雄 is used in modern times to refer to an outstanding woman or a woman with significant accomplishments.

In the old days, it was a title for a woman warrior (oh, did I mention that there were great female generals who led massive armies into battle in ancient China?)