If you want to go the DIY route there is https://wylderbuilds.com/shop/p/dactyl-manuform-resin-print which offers a 6x7 option
Can see the options here: https://wylderbuilds.com/all-sizes
Can see the options here: https://wylderbuilds.com/all-sizes
This is part of the challenge I face, so I am living with MS ergonomic keyboards until I can either try one of these first, or take a risk.