Gon and Killua haven't gotten to hug in the actual canon of the manga, but the stage shows and extras related to it do have some hugs between them!
The first scene (the video and first image) are from the first Hunter Stage last year. The next two images are from the one that just ended recently. I think the first one was from backstage or something, and the second was after the musical ended. The main 4 also all hugged after it ended, but I couldn't find any images of that, sadly--just tweets about it.
Anyway, I just thought it was cute they get to hug in this version at least!
Was thinking about how Kurapika does this very specific thing several times in the ‘99 anime which led me to thinking about little Kurapika learning Kurta traditions. Which wouldn’t be Hunter x Hunter fanart without a hint of tragedy.
Bisky is the funniest HXH character because she was planning on ruining KilluGon’s lives but then she watched them get their ass beat in monster mountain despite being strong as hell and she was like. “Stop. Oh my god, stop. I can’t fucking take this shit anymore, someone needs to teach y’all how things work here.”