Looking for a host family in the USA

Hi ! My name is Marie, i write here cause I’m trying to help my sister Juliette : she’s suppose to study for one year in a high school in USA next year to learn English and discover the culture in the same time. But the organization she has can’t find a host family for her. So I’m trying to find someone here, who has a contact or who can welcome my sister for one year.
(We come from France)

You need to know that she’s in a J1 program, means the host family is not paid for welcome the student. But everything that is not food or house is at charge of the student.

Thank you for your help, and sorry if I made some mistakes in English, I wish you a nice day !
this was posted by @Mariesay please help!

(edited 1 month ago)