If you go to the TSSAA website and then go to Bulletin Board (right under SportsPix) and scroll down, there is a list of teams looking for games in order of week. I copy and pasted the list, so here's what's open right now.
Smyrna High School - Smyrna, TN
Ooltewah High School - Ooltewah, TN
Obion Co. Central High School - Troy, TN
Macon Co. High School - Lafayette, TN
Blackman High School - Murfreesboro, TN
Jackson Central - Merry High School Jackson, TN
McCallie School - Chattanooga, TN
Hixson High School - Hixson, TN
Volunteer High School - Church Hill, TN
Baylor School - Chattanooga, TN
Ensworth High School - Nashville, TN
Battle Ground Academy - Franklin, TN
Walker Valley High School - Cleveland, TN
Lone Oak High School - Paducah, KY
Unaka High School - Elizabethton, TN
Red Bank High School - Chattanooga, TN
Wilson Central High School - Lebanon, TN
Warren Central High School - Bowling Green, KY
Here's the link.