Here's a pair that are worth reading in the same day. DC beat Marvel to the punch in telling racially tinged stores in their WW2 books, but Lee and Kirby managed to best them in the contest between these two stories, both of which concerned a black soldier confrontting a racist and both of which featured a scene with blood transfusions.
But in the DC story the racist is portrayed as a near-inhuman monster, while in the Marvel story he's portrayed more realistically, as a person who's basically decent, even heroic -- except for that one large and glaring flaw. People like that are much more the norm out there in the real world. When you attack racism through stories it is more effective, in my view, to point out to normal decent people how they may be racist without knowing it. If they see an inhuman monster killing and maiming a black man while he gloats over their bodies, they presume "that's not me. I don't lynch people, so I must not be racist.,"
Anyway, here is a pair that makes good reading,