Fullmetal Alchemist, Kimetsu no Yaiba Recommendations
Demon Slayer and FMA have similar character roles and fights against demons but the atmosphere isn’t the same.
After the death or disappearance of their entire family, the main characters (Tanjirou/Edward) share similar goals, to search for a way to return the body of their younger sibling (Nezuko/Alphonse) to normal.
(Tanjirou/Edward) fight side by side with their younger sibling (Nezuko/Alphonse) and the bond they share is admired by others such as (Mitsuri/Armstrong) not to mention (Giyuu/Roy) the person who lead the way for them to be what they are in the story(military alchemist/demon slayer) also share some characteristics like being cold but considerate and protective
Both have same premise like they want to take back their normal life. Also they have brother-sister relation