I listened to a shardcast episode where this was talked about (I don’t remember which one) and subsequently spent a few hours working on my own theoretical grouping. I don’t know if anyone’s suggested these categories already, but this is what I came up with.
Change
Preservation-involved with change by being it’s opposite/absence
Ruin-wants to change things destructively
Cultivation-growth is a form of change
Endowment-gifting something makes it change hands, (this one’s a bit weaker but I don’t think it fits my other categories better)
Think
Invention-thinking of new ideas
Whimsy-imaginative thinking
Ambition-thinking that produces action toward your ambitions(also not as strong, but it fits her better than my other categories I think)
One of the unknown shards, possibly “survival shard”-??
Feel
Mercy-a feeling toward others
Odium-he says he’s about passionate feelings
Valor-feeling of courage
Devotion-strong feelings of loyalty/love for someone/something
Bind
Honor-oaths and bonds are his thing
Dominion-connecting things under one rule
Autonomy-same argument as preservation being in change, opposites are still connected
Last unknown shard, also possibly “survival shard”-??