With thousands of dogs being given up at the moment, any dog would be lucky to get a place there- They are probably inundated, and very likely just have a small group of sponsored dogs by looking at their website.
Realistically no one will be taking on a dog with a bite history and as tricky to be around as your dog is -
He is likely to be passed from pillar to post - he bites a Foster's dog, he'll likely be out on his ear or euthanised anyway by a stranger.
No one on here who is campaigning for you to seek a rescue is offering to take him on...I wonder why.
Dogs with deep issues are two a penny especially since they started shipping them over from overseas.
Sadly it's a money maker for many importers - and the Facebook shaming I have seen with some of these groups.
{An unsuitable dog is returned, and it's all '🤬'emojis and
''It's OK Mia, WE still love you''}
A life in a kennel is no life at all. It's basically like being in a jail cell with maybe a 45 minute walk a day if enough volunteers turn up- it's also very noisy.
It would be kinder if the 'Four paws' 'pack' place can't take him on to PTS by your vet- Especially if she suggested this in the past.
Get the vet to come to your house.