Have you heard of Twiddler? It's a one-handed chorded keyboard which people have managed to get up ~60wpm (IIRC) typing speeds.[1] It might be potentially useful when computing in VR.
There's also someone I met recently who is working on a VR keyboard (though it's not chorded).[2] Seems like an elegant design.
Earlier, I also made an apron keyboard specifically for VR usage.[3] It's cool but arguably more invasive than these other designs.
