Ideally? Just a calm life with a living female dog, no human companion at all. Not very picky about race so long as she's a big girl, although maybe a short coat race would be nice as it can get pretty bot in here and I don't want her to have health problems due to being overheated. Maybe a Dalmatian, a Rottweiler, or even a Dobberman.
My perfect zoo life would consist of spoiling the living soul out of her, lots of toys, lots of playtime; premium snacks for my absolute princess for being such a good girl. Hearing her barking all excitedly the moment she hears the car or smells me getting close to the house, rushing towards me. Her eyes filled with love and maybe she's a bit too excited and she pisses a little bit? Would make me feel like the most important man in the world, I tell ya.
That's without even getting to the part of an ideal zoo life. I am just describing an ideal life at this point. Making love with my girl, petting becoming sensual, teasing her teats, masturbating her, eating out her cookie (if she is into that) and of course, making love with the goodest girl ever. At least for me. I am sure some of y'all already have your goodest girl.