This is a little dated and professionally focused but the data is interesting .
"7% of Americans cited soccer as their favorite sport to watch according to a 2018 Gallup report, while 9% preferred baseball. Soccer in the USA is the third-most played team sport, behind only basketball and American football. Major League Soccer, has experienced a 27% rise in interest since 2012, according to Nielsen Sports Sponsorlink"
https://www.questionpro.com/blog/soccer-and-usa/
I haven't read otherwise since that this trend has changed.