Regarding paragons in HxH. I checked the definition and it is quite different from “The Paragon” trope. I think Gon can be already considered a bit of a paragon, according to tvtropes anyway, and will become more paragon-like in future.

Oh, I took it to mean the definition, not the trope, which I’ve never heard of actually! Apologies. The trope if according to TV tropes is “A character who lives to help others, but in a way that shows those people how to help themselves.” That I think we might see, and already do to an extent (Cheadle for example comes to mind, Pakunoda, etc). I agree I can see Gon especially after his development whenever he returns to the story going this direction, and Killua as well.