Maybe the only parallel to soccer I can think of is sports like Rugby in UK and some English-speaking countries, Cricket in India, and some sports endemic to countries (such as GAA in Ireland).
The best way to compare the US to other countries in a sport that is similar in terms of interest among other countries is something like Volleyball. Which the US tends to be very good at, with many major competitors. I can't think of anywhere that volleyball is a #1 sport that sees a lot of unstructured play.
All this was obviously about team sports.