@PeperLevi
What kind of mangas do you usually like? HxH has a strong adventure vibe, and the characters have cool abilities.
I'd say FMA can be close enough in terms of plot quality and characters powers versatility.
You could also try Rave Master, it's the first famous manga by Mashima who created Fairy Tail, and tbh it's better in terms of quality, although a bit cliché-y compared to HxH.
As for webtoons, did you try Solo Leveling? The MC is a not annoying Mary Sue, the art is spectacular, the plot is a little weird, but interesting.
I second
@Light D Lamperouge in Dandanan, it's crazy cool. Binge read it in 1,5 days, loved it and still enjoy it on a weekly read.
If you like sports manga, I could recommend good old Eyeshield21, it's one of my favorites.
If you like slice of life manga and didn't try Bakuman yet, I would also recommend. It's interesting in terms of seeing how the manga is made, rated, cancelled, and how actually difficult it can be for the author to finish the manga the way they want. It's a semi-autobiography for Death Note authors, and it was a fun read.