I've been asked a lot about the best ways to rescue the dogs affected by Harvey. Here is the main thing I would say, having done this kind of relief work before:
Don't get too hung up on wanting to adopt or save a "Harvey Dog."
The most powerful thing I've seen help is when people adopt or groups rescue the dogs that were already in shelters in the affected areas before the disaster hit.
Getting those dogs out makes room for the storm dogs coming in. The dogs already in shelters are for sure in need of a home so can be transported anywhere to leave the area, while the storm dogs typically need to stay in the region for a while in case they can be reunited with their owners.
Make sense? I know it sounds mundane, but having been through it, this can make a profound difference.
For example, Big Fluffy Dog Rescue is going down and pulling many dogs already in shelters before Harvey and taking them into their rescue. They definitely need funding and supplies for this massive effort, as well as foster and adoptive homes. You can follow their FB page for specifics.
There are many legit efforts worthy of support. Go to my FB page for more conversation about what the various groups are doing: https://www.facebook.com/whatbaxterstarted/.