It's a short story, but "Bernice Bobs Her Hair" by Fitzgerald is my favorite.

There's so much red scare stuff, but so much of it is veiled. What about Barbara Kingsolvers' The Lacuna? Lillian Helman's Scoundrel Time is a memoir, and not a great one, but there's a lot of good HUAC stuff in there.

Comfort Woman is WW II refugee story by Nora Ojka Keller. It is amazing. She also has Fox Girl (Korean War). Both of those books directly address sexual violence and the experience of Korean women post war, so they may be too much.

Sinclair Lewis has Babbit (20s).