The shonen genre has been one of anime's most popular for several decades, due in large part to its affinity for spectacular fight scenes. Although combat and power-scaling aren't inherently a part of shonen media, most of the genre's most popular titles have used fighting as a medium for character exploration and plot development since the debut of ground-breaking anime like Fist of the North Star.
Source:https://www.cbr.com/best-shonen-anime-fight-scenes/