Sealed Monitor Speakers

NHT SOO and MOO is an option but wall mount could look ugly due to power cords..

Selah Audio Tanzanites, etc.

One thing I noticed about most so called sealed designs is that the Binding posts are not sealed and will let air through this causes a chuffing noise when played loud. If you have a sealed loudspeaker play some bass heavy music loud and place hand over BP most will let air by. I have had good luck removing BP and silconing the back.

Try Danny Ritchie of GR Research's NEO-2X. It easily imo competes with speaker costing $3k. And if you use the right amp there is no need for a sub.

There is a body of opinion out there that many vintage sealed designs are superior to modern day speakers. If you're willing to broaden your scope, you could grab a bargain classic for much less than the numbers bandied about above.
Look for Spica TC-50 of TC-50i and Ensemble Reference. These need stands and if the lowest 2 octaves (20-80 hz) are of importance to you, a sub will be necessary.