The poems that were written since 1975 that represented some aspect of realism include:
The Water Land by T.S Elliot.
Song of Myself by Walt Whitman.
The Nymph's reply to the shepherd by Walter Raleigh.
They by Siegfried Sassoon.
I sing the body electric by Walt Whitman.
Realism simply means the detailed, accurate, depiction of nature. A poem that's realistic portrays everyday life exactly as it is.
The poems above illustrated realism. They focused on everyday aspects of life, surprising word combinations, and used a form that fits the content.