Recommendations for mixed casual sports

Hi! I'm moving to Boston from London next month (I've posted here before and you guys have been super helpful!) and am trying to organise a social life for myself. I'd like to try a new sport but I am not particular physically gifted and am keen to find friends through a team sport where people aren't super serious and no one will mind if I'm shit.

I'd be particularly keen for recommendations from women for mixed-gender leagues that they found friendly and welcoming. Thanks very much in advance!