Most Popular NFL team map (2016) : r/MapPorn
Top 10 Most Popular NFL Teams
The electoral map of football, 2020 edition: is the United States more of an NFL or College Football country?
Europe's Favorite American Football Teams by Nation : r/europe
7 Best National Teams Where Football Isn't the Most Popular Sport
Countries with the Biggest NFL Fan Bases
NFL Fan Map: Favorite Team by County
NFL Team Values Ranking List –