One example of a good shelter

http://animalcare.lacounty.gov/AdoptSearch.asp

This shelter is very good for adopting because you may see pictures of animals before going to the shelter and see them. There are many shelters in every city that help animals like this place so if you want to have an animal, i would recommend you to adopt him, because you will have a better connection with him and you will be helping him to have a new home , and another benefit is that is totally free.