I'm just going to name characters that would fit the Shonen hero trope
Zack Fair from Final Fantasy VII
Zell Dincht from Final Fantasy VIII
Pit from Kid Icarus
Sora from Kingdom Hearts
Sonic the Hedgehog (character)
Sieg from Suikoden Tierkreis
Mario from Super Mario Bros
Finn from Adventure Time
Aang from Avatar: The Last Airbender
Ben Tennyson from Ben 10
Rex Salazar from Generator Rex
Po from Kung Fu Panda
Any Link from Zelda
Travis Touchdown from No More Heroes
Dante & Nero from Devil May Cry
Ninten, Ness & Lucas from Mother/Earthbound
Ryu from Street Fighter
Kyo Kusanagi from King of Fighters
Spyro the Dragon (character)
Klonoa (character)
Zack Fair from Final Fantasy VII
Zell Dincht from Final Fantasy VIII
Pit from Kid Icarus
Sora from Kingdom Hearts
Sonic the Hedgehog (character)
Sieg from Suikoden Tierkreis
Mario from Super Mario Bros
Finn from Adventure Time
Aang from Avatar: The Last Airbender
Ben Tennyson from Ben 10
Rex Salazar from Generator Rex
Po from Kung Fu Panda
Any Link from Zelda
Travis Touchdown from No More Heroes
Dante & Nero from Devil May Cry
Ninten, Ness & Lucas from Mother/Earthbound
Ryu from Street Fighter
Kyo Kusanagi from King of Fighters
Spyro the Dragon (character)
Klonoa (character)