this pet food store, which has several locations, gets kittens that have been taken from feral mama cats (who are often too wild to be adopted and instead are spayed and released), fostered with a family and then put up for adoption. they are usually young ( a few months) and in great shape. they free-range in the store so you can really see their personalities.
this store is also a great place to get all your pet supplies (mostly cat and dog but also some bird and rodent stuff). the staff is consistently friendly and helpful and SO knowledgeable. you will get persuasive arguments to buy premium pet food which are spendy!