I remember, that last year I bought one German shepperd dog in this 1:6 scale...
and I have send it to Susanne as a gift :)
You can see the dog here, from
[You must be registered and logged in to see this link.]I got it from Aliexpress , from THIS SELLER
I thing, it is a nice looking dog...and you can take off the clothes of him.
It is an action figure ...but for this scale, I think, that you need to surch dogs in action models...
Also like this DOBERMAN in two colors for example.
These are from Aliexpres with the best price ....
and this is from Ebay : LOOK HERE ...also with the best price ..
They are very nice, but the price is not so nice
So, for now I know only these dogs, in this scale, made of plastic.
Or maybe , you can find also dog models in 1:6 made of resin ...
I hope, this will help you a bit :)