MR:
The best is Monino, in a Moscow suburb. They seem to have one of every type built. It needs some pre-organsation though as you just can't turn up; use a Russian friend to make the calls to arrange things with them first. You will be expected on the day - and welcomed.
There is an illustrated English-language guide available there produced and sold as a private venture by one of the (pretty much unpaid) staff. He's a fascinating guy to talk to, a retired ex-Yak test pilot.
PM me if you don't have anyone Russian-speaking to do the arranging.