A challenge..!
How do you prioritize which ones you measure in what order?
My suggestions: First, those most likely to be considered Now by ASR members: HD560s, HE 5Xx, Deva., Sundara, Ananda, Under $1k..
Perhaps a couple $5k-type for comparison up front.
But, right now , No ' historical' unbtainium types. (HE6 etc.). Later, perhaps. HP up to $1k..to start for now..
Cross select the current dynamic, planar offerings. Electrostatics, again later.
As well as 'garage shop' (Verum?) stuff. Later.
Eagerly anticipating these new reviews!