The Bundesliga has the highest response rate among the five major leagues in Europe, especially Bremen and Schalke 04. If you write to Bayern, if there is an international response in the letter, the response rate will be greatly improved.
In addition, Villarreal, Ma Jing and other small and medium-sized clubs have a high response rate. Hildebrand, Robben and others are also very enthusiastic about the fans!
However, the most important thing is that you should be sincere, express your admiration and admiration, and show your true feelings. The response rate is the highest. In addition, it is also a good idea to "bribe" the recipient by adding some bookmarks and the like to the envelope!