Lost our little buddy

I am so sorry for your loss I know first hand how hard it is.
To answer your question, another dog to love and love you back is the best medicine and for the other dog that has lost its best bud. Thats my take.
I have RedDog #2, a not so minature dachund. I had to put down #1 4 years ago. I have had dogs but for whatever reason, we were like one if you can understand. I swear he could read my mind. #2 is about 2 years old and just like #1. I waited way to long to get RedDog #2.
They are different but so much the same! God I loved #1 and I love #2 just as much.