@Marine91 listed the two I know. Lone Star is in Dallas/Ft Worth and I believe, a large group. There is also a rescue group in Austin https://austinbulldogrescue.com/available-dogs/
My advice would be to go through a rescue if you possibly can. They will vet the adopter thoroughly and make sure she goes to someone who understands her needs. Plus, if there is any reason they can't keep her, she will go back to the rescue, not end up in a shelter. She's a lovely girl. Good luck