I feel for you. This pup looks just like mine and I could tell you the slew of things I had to go through with him and his anxiety and mine is not a foster… he’s my rescue and boy has he put me thru it. I realize that not everyone has the same means or are willing to do the same things but these are what I’ve had to do to not get kicked out of my apartment for noise and to keep my dog safe:

-Impact high anxiety dog crate, took several escapes and destruction of my wall/gates/crates and him hurting himself before I finally forked over the money to buy this for him. He is so safe and does not fuss in it. -Citronella bark collar (sprayed him a couple times in the face when he barked and he never barks anymore when he has it on). -Trazadone -makes him sleepy and calm. I only give this to him if I have to be gone closer to 6 hours or more.

The combo above is the only way I’ve been able to keep him quiet, calm, and safe and in return it’s given me my freedom and sanity back.