We lost one of our furkids in December......so I know how you are feeling now. I am sorry for your loss.
In the few months before Kody passed away he managed to avoid bloat and had a precancerous tumor removed from his paw. What was missed on all those trips to the vet and the ER clinic was some tumor that was wrapped around his heart and lungs.
Of all the dogs that we've had through our home, perms and fosters, he was and will probably always be my favorite. That being said, since the missus and I do work with a few rescue groups, I'm painfully aware that right now there are many deserving pups in shelters that need a forever home.
We celebrated Kody's life after Xmas by finding someone in a shelter that needed our help. We found a cute "mystery meat" mutt who was just a day away from being PTS because the shelter saw him with a runny nose. Shelters put down dogs with any sign of sickness before it spreads through the shelter. Anyway, Riley came home with us, we got him better with some antibiotics and we found him a fantastic home with a mom, dad, two kids, and a furkid sister. Now we have Harris a golden (?)/border collie (??) mix who is a little antisocial to dudes, pays just a little more mind to the missus, but he's coming along nicely. We'll get him on the right path and find him a home when he is ready.......
Kody's page is here: Kody -- When the time is right I'm sure someone will find his way to our home and fill his paws