Rescue or foster may be a great option.  While it is rare to see a pure-breed Rhodesian in shelters they do occasionally show up.  Most reputable breeders make a life-long commitment to the dogs they place and will take the dog back rather than allowing them to be surrendered to Humane Society etc. 

If you are interested in rescue, there are several reputable Rhodesian Ridgeback Rescues, and most likely one in your State.  These may be a good option if you should desire a rescue.  Also local breeders may be of help locating a rescue.  Here are some contacts:

Colorado Rhodesian Ridgeback Rescue

Ridgeback Rescue

Rhodesian Ridgeback Rescue of the US