What would be a good 3rd compliment to the caldera open and atrium open that does what the other 2 don't

Just asking this as a hypothetical, out of all zmfs new and old (as new as the ori 3.0 and as old as the eikon, atticus, etc or even the original ori), open or closed, if you could only add one more pair to the group which it would be and why assuming that these would be your only headphones? Or alternatively if you think that none of them are a good fit or if there might be one outside of zmf that you think would be better which would it be?

Sorry for the numerous posts over the past few weeks, just been trying to become as informed on all this as I can.