They’re both short stories, less than 10 minutes to read.

If you’d like to read novel length LeGuin, “The Left Hand Of Darkness” and “The Dispossessed” are excellent. Much of her most lauded work shares a universe, but each novel stands alone and doesn’t share relevant characters, let alone protagonists.

Edit: „The Ones Who Walk Away From Omelas“ can be read at https://shsdavisapes.pbworks.com/f/Omelas.pdf