Like everything else on the web, Google keeps a close eye on Thanksgiving, monitoring every little aspect of the holiday and what people are searching for. Here is some of their data:
https://trends.google.com/trends/story/US_cu_E_q5kl8BAAD16M_en_en-US
Here is the current map of unique Thanksgiving side dishes.
https://trends.google.com/trends/story/US_cu_E_q5kl8BAAD16M_en_en-US
Here is the current map of unique Thanksgiving side dishes.