Having access to multiple keys per thumb really is a huge improvement over standard keyboards. They are pretty expensive, but you can get a custom Dactyl Manuf

Having access to multiple keys per thumb really is a huge improvement over standard keyboards. They are pretty expensive, but you can get a custom Dactyl Manuform made for about $400-500. I think there are some cheaper ways to get one. I made my own and its the best keyboard I've ever used. Before that I was using a different split keyboard (the ergodox-ex) and it was pretty good but the Dactyl is near perfect. I just wish they were popular enough for a large manufacturer to start making some non-3d printed cases for them.