@rsf507’s recommendation of the Eminent Technology "speakers" (presumably the LFT-8) is a fine one, but you should know that it’s design is magnetic-planar, not ESL. His other nominee---the Sanders ESL---is another great planar. The price differential between the two is considerable---$2499/pr for the ET vs. somewhere around $15,000/pr for the Sanders!
You should also know that each requires a fair amount of amplifier power (being an 8 ohm resistive load, the ET can be partnered with a medium-powered tube amp), and are both "single-listener" designs, each having a rather narrow sweet spot. The same is true of many other planar (including ESL) loudspeakers. And that they both, like all planars, need to be (while listened to critically, at any rate) out in front of the wall behind them by a minimum of 3’, 5’ being better. 10', if you have the space!