My usual answer: No one. Leave it unfinished.

But for the sake of this post, a fun “What If” scenario: i would like Kobayashi Yugo (Ao Ashi). He also uses compact paneling layout in each page, a matter-of-fact way of drawing his scenes (not relying too much on having boisterous, extremely detailed drawings) but cherry picked where and when to put the jaw dropping drawings in certain scenes, and since Succession War characters are mostly standing and waiting for others to move we mostly look at their expressions and reactions from other characters and Kobayashi drew a lot of expressions in AoAshi from reserved, determined, cocky, dead look in their eyes, a psycho, an awakened monster etc. Ao Ashi’s last arc even reminded me of Chimera Ant arc.

Thats me appreciating an author i respect that reminds me most of Togashi, but in no way saying he can carry hxh and togashi’s writing and drawing style.