This is an exciting new project for me. Not only is this a completely new unit I am starting form scratch, but it is one I have wanted to do for years. That is bring back the Elven Beast Masters!
I am going to start with the Bear Clan for two reasons. Firstly I have all the miniatures I need to complete this project. Secondly, the Boar and Cat Clan will be Hunters of the Wild proxies, while the Bear Clan are going to be a large infantry horde unit proxy - and that is what I want at the moment!
So, some experimentation with the placing of the models lead me to a unit that seems well balanced where miniature position goes. Since the bears are slightly smaller than Tree Shamblers I decided to place 8 figures on the multibase instead of 6.