What are the Pokemon in Sun/Moon that can halve the walking time with an egg?

Question

I know that Flame Body is one of the abilities that can help walking an egg. Is there any others and can you tell Pokemon that carry those abilities in Sun/Moon?

Answer 1

In Pokémon Emerald, several more mechanics were added. A Pokémon's nature could be influenced if its mother held an Everstone while in the Day Care, while Pokémon with Magma Armor or Flame Body shorten the hatching process if they are in the party with Eggs.

Pokemon that can have flame body: Magmar, Slugma, Magcargo, Magby, LItwick, Lampent, Chandelure, Larvesta, Volcarona, Fletchinder, Talonflame
Pokemon that can have magma armor: Slugma, Magcargo, Camerupt
Pokemon whose hidden ability is flame body: Ponyta, Rapidash, Moltres, Heatran
source

Comments

To condense this answer to the relevant game, Sun/Moon, the following Pokemon are available in Alola:

Magby/Magmar/Magmortar
Flechinder/Talonflame
Litwick/LAmpent/Chandelure (Island Scan)