In common/dynasties any dynasty with a set coa will be seen by referencing a texture, those are all the ones with static coats of arms. You can also look in gfx/coats_of_arms and see all the region specific ones.
There is no master list however as that would take ages to make and not something we have prioritised documentation wise obviously
There is no master list however as that would take ages to make and not something we have prioritised documentation wise obviously