You can use a folding screen. Or make on hinging shutters or doors togethet
Hi Kar, this should help
It all depends on how much division you want.
Curtains hung from ceiling
Freestanding screens (I like the Shojo style)
If farmhouse: hang old windows to divide the space but still see between the two
3-4 FOLDING DOORS like goes onto closets. Hinge them together & you've got yourself a room divider. You could decoupage it, paint it, use stencils, cloth the centers, string lights on it for ambulant light or use them plain. There's a world of options for decor.