If <Solo Leveling> is anything to go by, Elio and his family would perfectly fit into the entire genre that the series has spawned. Y'know... Gates/Towers, Monsters, Players/Hunters, RPG-based leveling and classes, clans, the whole nine. Typically, the Argentiums would be one of the most influential forces in such a world via their beneficial multifaceted contributions in the face of such a world-changing and life-altering event, their unsurpassed amounts of accumulated wealth obtained via the rewards they reaped from said Gates/Towers, and their naturally unparalleled talents and unique genetic skills that put them several levels above the average player.

Alternatively, I can also see Elio and his family being cultivators in the <Douluo Dalu> universe - more specifically <Part IV - The Ultimate Battle> where humanity has advanced tremendously, inevitably becoming Gods of the essences they were cultivating.