What to do with 15 cats (Ohio)

I’ve been helping my grandmother clean out her house, she’s kind of a hoarder, and she also has around 12 cats and 3 kittens that come in and out of her house. She is going to keep two of them that are close to her, but she can’t keep or afford to keep the rest of them. She lives in town. I would love to help all of these cats but I’m not sure what to do with all of them. I don’t want to take them to a shelter that will just euthanize them in a week. Nobody in the area seems to want any cats because the town has a bit of a cat problem. If anybody knows of any shelters or sanctuaries or anything of the sort that will take this many cats please let me know. I am willing to drive anywhere in Ohio or surrounding states. Even if it’s far away I will still make the trip to ensure these cats get taken care of, my grandma wants the same thing for all of them but she can’t drive that far. Or, if any of you live in Ohio and want a cat/kitten, I would love to work something out. All of these cats are very friendly and good around humans because my grandma has been feeding them/around them for a while now. Anything helps, thank you everyone!