The UIL webpage has 32 on the list now.
1 Rockwall Heath
2 Mesquite
3 Royse City
4 Wylie East
5 Plano West
6 Eaton
7 Tyler Legacy
8 Marcus
9 Wylie
10 Rock Hill
11 Flower Mound
12 John Horn
13 North Forney
14 North Garland
15 Plano East
16 Byron Nelson
17 Sachse
18 Rockwall
19 Lakeview
20 Garland
21 McKinney
22 Allen
23 Guyer
24 Braswell
25 Plano
26 Lewisville
27 Rowlett
28 Little Elm
29 McKinney Boyd
30 Hebron
31 Prosper
32 Naaman Forest