Have you come across the Symbolism Communication blog? The author has used the crumbs from the Q posts to outline a vast network of hidden comms in mainstream media.
This entry covers crop circles and their use as a means of untraceable comms through coverage in mainstream media:
https://decodingsymbols.wordpress.com/2021/06/11/the-other-fake-news-fake-science-and-sports/
It's quite a long post, worth the time in my view as the arguments are linked, but if you're only interested in the crop circle aspect it's about a third of the way down and begins with the Kevin Costner movie 'Field of Dreams' and it's possible relation to the Alton Barnes circle of 1989, that's the one from the cover of the Led Zeppelin anthology which many will recognise.