Connection with the country or city where the festival takes place is the most intriguing information about the film for the selector, do not hide it. If you shot a story about dancing in Italy, prostitution in India or music in the UK, then most likely the festivals of these countries will be interested in your film.
If you have not found any connection with the festival, then the best way to make an impression on the film is to demonstrate your knowledge of it. Study the program of past years. Perhaps you will find a picture similar to yours, then notice the festival for similarities. For example, "I know that the Grand Prix of the last festival took a film made in the genre of documentary satire. My picture is made in the same genre ... ". If your movie really looks like the movie you are writing about, aim at the festivals where it was shown.