TapXR

The most directly 'keyboard-free typing' option that's buyable today and standalone. Tap any surface; built-in motion + optical sensors read which fingers tap, emulating a full keyboard (~70 wpm ceiling) + 100+ commands, over Bluetooth to any device. Cons: steep learning curve — you must learn the Tap alphabet (1-2 hrs to start, weeks to fluency), and reviewers find multi-finger chords unnatural. Best candidate for your secondary 'type without a keyboard' use case.