Need help replacing my beloved Magnepan....

+1 with @johnto and others who suggest replacing Maggies with Maggies.  No other speaker reproduces music as accurately as Maggies, IMO.

The limitations you note are evidently size.  Move them when you are not listening, or go with the smaller Maggies.

You will be glad you did in a year or so, I am sure.  Listening fatigue is NOT a pretty thing, and box speakers give you that, unfortunately.

Cheers!

I really do appreciate all the great recommendations you guys are giving me. If anyone else has any other suggestion, please share with me so I can make the proper switch or stick with the Magnepan product line by next week. Stay Safe & God Bless.

I'm not going to offer a specific recommendation, but I am going to offer a word of experience in moving in the direction of monitors.  I owned Maggies for years, starting with SMGA's, moving to 1.6 QR's, and finally to 3.7Rs.   I bought a pair of Coincident Triumph Extreme II monitors to use in a second system, and I was floored by how they stacked up against the 3.7Rs.  While the monitors couldn't match the true ribbons in the 3.7Rs, they were as good or better in most other respects, even giving better and lower bass response than the 3.7's in my room.   I've since gone to boxes in both of my systems, and at least in my main rig, I get much better imaging etc than I ever got in multiple rooms using Maggies, and I had considerable placement  latitude for optimally positioning the Maggies.  As always with speakers, audition!  If I were in your position, I'd take a hard look at what Fritz has to offer.  He has got a lot of satisfied customers. 

Hi Analoguefan,
Take a look at Tetraspeakers.com. First photo you see is Keith Richards saying “These are not just ANY pair of speakers!”. And then an amazing group of some of the world’s greatest musicians saying even more superlatives. Herbie Hancock, Ron Carter, et al.
After almost 50 years of constantly upgrading my system and speakers especially, I am off the merry-go-round for good.
I currently have two systems with two pair of Tetra speakers-the $1500 entry level 120Us and the $16k Phoenix TZs. Of course, the Phoenix have a more complete and fuller sound but they both have the Tetra house sound. They sound right. They grab you with truth unlike any other speaker I have ever heard. Tetra sells direct and can fix you up with one of their bookshelves. I was absolutely convinced by the comments on their website and am, obviously, thrilled and no longer tempted by any other speaker. Other than a Tetra, I lived with Quad 57s for 10 Years. I still miss the Quads but will never listen to anything but a Tetra.

Danny Richie (GRAudio) is running a steal of a special for a terrific pair of speakers. Check out his YT channel where he describes them