Head sculpt recommendation for Alastor (Hazbin Hotel)

I'm not super familiar with this character, but, the way the cosplayer does their nose make-up reminds me of certain IOS dolls, since they have a few sculpted with super sharp, straight noses like that (ie G, A1, Mezz, Blue). They have at least one with a big smirk, too (Jaguar).
A DollZone Evan might also look nice, with the right face-up.

What features of the character do you like most, when you look at him? That might help translate him to doll form.

Either way, good luck on your quest!

 

Miracledoll Vic might work, but the mouth is considerably smaller with only a little bit of the teeth showing. Still, the sculpt reminds me of him sometimes, so it would be my first choice.

 

What about Ringdoll joker? I think it brings out the sinister side. Guess it depends on what look you want to go for.
Joker, 76cm Ring Doll - BJD, BJD Doll, Ball Jointed Dolls - Alice's Collections

There are quite a few models out there that show teeth or have fangs. I spend a lot of time flicking through Alice Collection. Lol

 

Aaa, I love that show! Can't wait to see your process with him!

 

Maybe something like Kappa from Doppel Maiden...?
[DM75] KAPPA head

 

I love big smiled guys so I have two suggestions. Loongsoul has a limited doll I'm hurrying up and getting soon and a permanent doll with a big smile.
Monster Nian, 73cm Loong Soul Doll Boy - BJD, BJD Doll, Ball Jointed Dolls - Alice's Collections
7 Stars - Greedy Wolf, 68cm Loong Soul Doll Boy - BJD, BJD Doll, Ball Jointed Dolls - Alice's Collections

 

Yeah loongsoul is stingy like that, their bodies are rather slim and the posing I've heard is really good

 

The only doll I can think of with a super big cheshire cat smile like that is Miracle Doll Ian and he fits the zany look as well.

 

There was a DiM Grell head that I remember doing a faceup on a number of years ago that would actually be perfect for this, though it's been a few years since I saw one last so not sure on the rarity (and now I'm wishing I had gotten one when I had the chance).