https://github.com/Kode/Kha/wiki/Feature-Matrix
Judging from the feature matrix Kha currently supports openvr or oculus rift but is there any example I can check?

The matrix is not quite right because the Kha VR support hasn't been updated for recent changes in Kore's VR support. That said, Lubos has demo code hidden somewhere (see http://forums.armory3d.org/t/vr-demo-dino/316) and you can find current Kore based VR things at https://github.com/CatCuddler/BodyTracking

Oh, that's a bit of a shame but thanks! I'll check them out.