If AU games aren't a total no-go for you, maybe usir would be a good fit for Garrett?

It's a fairly new and small fantasy AU game that tends to range from slow to medium depending on what's happening. The plot is that the characters have woken up 100 years after dying in a massive war between three cities and their guardian dragons, kicking off strange events all around them into gear. Each character also gets some kind of soul animal called an anima, so a canon animal companion could easily become theirs.