This is someone who wins competitions and is the best in a sport or activity.
a champion
This is someone who writes books, articles, or stories.
a writer
This is someone who writes code to create software and apps.
a programmer
This is someone who creates paintings, drawings, or sculptures.
An artist
This is someone who studies nature and experiments to discover new things.
a scientist
This is someone who participates in a sport or a game.
a player
This is someone who writes music for orchestras, movies, or songs.
a composer
This is someone who is extremely intelligent and creative.
a genius