anime anime like naruto?

any recommendations for anime that have similar themes to Naruto, whether its war or children growing up in a world where you need to fight to survive, btw i really like the whole team system like how mha has different classes, or like the diff teams in Naruto idk just some similar
also it doesn't need to be exactly about ninjas but some similar
some example's would include mha or soul eater maybe even seraph of the end, thanks yall