I,have a rescue dog, removed from a,bunch of "travellers" in Ireland where she'd been used as a "bait dog".
The "problem" with the big, domestic rescue charities such as RSPCA, Battersea etc is the hoops you have to jump through to get a dog from them which the smaller ones don't seem to bother with so much. OK, some of them are important but when it gets to things like your garden must be a certain si ze, so the dog can exercise it's getting silly - isn't that why you take the dog for a walk or two each day?