The best way to find a rescue Ragdoll cat to adopt is either to check at your local shelters or to utilize a national registry that can help you locate a Ragdoll near you. These registries can also help you find rescue organizations close to your home.
First, check your local shelters. Ragdolls are sometimes picked up as strays or surrendered by their owners for any of a number of reasons. Most shelters will only hold animals for a short time before euthanizing them, so these are the animals most in need of rescue. Checking back frequently is a good idea, as the turnover is typically very high.
You may also choose to utilize a registry such as Rescue Me or Adopt a Pet that can help you to locate an adoptable Ragdoll near you.
Rescue Me has a map that will show you where available Ragdolls are located by state or country. You can also sign up to receive an e-mail notification whenever a Ragdoll becomes available, or you can opt for daily or weekly notifications instead. They also list other resources, such as local rescue organizations, that might have adoptable Ragdolls.
Adopt a Pet has a search engine that enables you to find rescue Ragdolls within a chosen distance of your home. It allows you to specify sex, color and hair length if you wish to. They also have a tool that will email you when a cat matching your criteria becomes available.