I'd leave that wall bare. I think it would be a bit awkward to position something properly in that space and would detract from what you've got going on elsewhere in the room.

Also.. what would you recommend should go in that right corner?

Do you like music? For the wall:

https://www.google.com/search?biw=1366&bih=628&tbm=isch&sa=1&ei=DzwZXvGPKLDU5gKwqLCIBw&q=metal+wall+treble+cleff&oq=metal+wall+treble+cleff&gs_l=img.3...518182.522483..522648...0.0..1.331.1973.21j1j1j1......0....1..gws-wiz-img.....0..0i24j0j0i131j0i67j0i5i30j0i8i30.TMB6veF3b_w&ved=0ahUKEwix09flyPrmAhUwqlkKHTAUDHEQ4dUDCAY&uact=5#imgrc=_&spf=1578712640955

If that corner gets sunlight, you could add a large potted plant -- perhaps a rubber tree plant -- there.

Do you have school aged child -- a reason to have one of the newer styled adult sized bean bag chairs with a swing arm wall light over it for reading/studying?

https://www.google.com/search?biw=1366&bih=628&tbm=isch&sa=1&ei=Pz4ZXoiAMIj45gLz85tI&q=bean+bag+chair&oq=bean+bag+chair&gs_l=img.3..0l10.147450.149724..149918...0.0..0.284.1103.14j0j1......0....1..gws-wiz-img.....0..0i67j0i131.V9X4D1sYQuQ&ved=0ahUKEwjIm-PwyvrmAhUIvFkKHfP5BgkQ4dUDCAY&uact=5#spf=1578712793337

If you need a filing cabinet for your important papers, that could be a good out of the way place to put a wood one. (They can also be used as bedside tables.)

https://www.weaverfurnituresales.com/product/castlebury-lateral-filing-cabinet/

https://amishcountryfurnishings.com/office/file-cabinets/laurel-2-drawer-lateral-file-cabinet/