Here is an ergonomic split keyboard with programmable profiles that helps you become more productive. The Kinesis Advantage360 Professional Keyboard can connect to up to 5 Bluetooth devices. It uses the open source ZMK firmware for customization.
This mechanical keyboard uses Gateron Brown switches. It has integration palm support. It has thumb clusters with Enter, Space, Backspace, and Delete keyboards that you will use frequently. You can switch between 3 tent settings at the press of a button to reduce forearm tension.