Meet Bourbon(bmc mix?) & Ca$h

Some guy hit me while I was on my bike, so I've had lots of free time. I've been looking online to try to figure out the breeds of our dogs. Almost positive Bourbon is a BMC with Siberian Husky, 85lbs. And again almost positive Ca$h a Labrahuahua(lab+Chihuahua mix)barely 20lbs. While they might have others mixed in as well. Both around 2 years old.

With Bourbon, he's super lovely and bonded with all 4 members of the household. But if anyone else comes over, he always growls and barks. Very protective and territorial, usually he settles down. Also when taken out to the groomer, he does the same, especially young kids. Any tips for these? He was only 6 months old when we adopted him from shelter, that has foster homes. I'm thinking maybe a kid wasn't very gentle with him. Ca$h on the other hand, very clingy and affectionate. Always wants your attention or to be near. If he's crated or gated in a area, he whines constantly and barks. Meanwhile Bourbon next to him, not making a sound. I always make a joke. While in crates, Bourbon is probably saying "dude stfu. I'm trying to sleep here". Anyways nice to be here. Love seeing all the pictures.