KEF Blade
B&W (multiple)
Sonus Faber Venere
Wilson (multiple)
Devialet
Bang and Olufsen
Gallo
Estelon Forza
Magnepan
And so on. Many play with shape but sometimes it's inside a box as well. When the original tests on box speakers were done, much of the issue was that it was just an open box inside, then stuffing was added (acoustical treatment). Then internal baffling,, and so on. Rear loaded horns don't sit well so often boxes are added. But in general a box is easier to work with, and for many straight Clean lines are preferred. So the "box works ". And if the ears are happy the soul is happy.