If you can, try giving the Meze 109 Pro a listen. It’s a planar like tuning but slightly smoother and less cold without really being warm.
If you want to know more about what I personally think of them, my impressions are in the 109 thread here: Meze Audio 109 Pro - Official Discussion Thread - #41 by SenyorC
There are also plenty of other impressions in the same thread.
They are not quite as spacious as things like the Arya but they are not closed in either.