Do you have any recommendations for post-apocalyptic novels?

I’ve recently discovered an interest in post-apocalyptic novels and would love to read more. So far I’ve read Parable of the Sower by Octavia E. Butler and The Handmaid’s Tale by Margaret Atwood, and I’ve requested The Road from my university library, but I’m unsure how to go about searching for other novels of this topic—so any recommendations would be greatly appreciated! I’m not very interested in sci-fi, so post-apocalyptic novels of a more realistic nature would be of more interest to me. Thanks!