As good or better than Magnepan 3.7i

"I'm looking for suggestions of speakers with equivalent or better sound."

That's a really tall order. I honestly don't think you can get what you are asking for in the 9K range. 

I think the Wilson Watt Puppy 8 is equal or better sound but they are 28K. 

You can probably get 5K for yours taking your budget up to 14K but it's really hard to get the Maggie sound out of similar priced speakers. 

Just my 2 cents......

GR Research NX-Otica...https://gr-research.com/product/nx-otica-2/ 

The kits can be professionally assembled and finished from flat packs or DIY with much reward. Tremendous value and uncompromising sound quality. No affiliation, just personal experience.

@ozzy62 "So what you’re saying is that it’s the perfect room?"

Yes, pretty much. Cox (www.acoustics.salford.ac.uk) did large scale simulations of hundreds of thousands of rooms, and concluded that almost everything that most people have ever written or read on the subject is just plain wrong.

And not just the usual suspects - this includes the chapter in the Electronic Engineer’s Handbook (McGraw-Hill? CRC? - can’t remember). Anyway, he presents a scattergram of good ratios (height to width to length), about 2% coverage, and another scattergram of OK ratios - about 25% coverage, both for small, medium, and large rooms.

To my surprise, I found that one of my rooms was near one of his best dimensional ratios, a small island of sonic excellence centred at 1 : 1.415 : 3.47, so I rebuilt that room to those dimensions, to 1/8" (3mm) tolerance. Screw and elastomeric glue, Quietrock over Baltic birch ply, built-in record shelves, the whole 99 yards.

Most people remark on it as soon as they enter the room, before the music starts. They comment on the quality of the silence. There’s something peaceful and calming about the room itself. Costly? Yes. Worth it? Too right. Best component I’ve ever owned. Thing is - coincidence - that's the same ratio the OP could bill to.

My post of 08:44 reads, "Since you like planners, could you stretch to Quad 2912?"

DAMN that autocorrect. Should read, "Since you like planars, ... Quad 2912."

You might like "Pure Audio Project" open baffle speakers because you can customize them in many ways!