You could go for a Sofle, that’s very Corne-like (V1 is a direct superset) but has a number row, a few more lower row keys (good for dedicated Alt/Gui/Menu keys!), and rotary encoders. Plenty vendors make these.
More generally though, there are many keyboards! If you were to set requirements as “pre-built, low-profile, number row, at least 3 thumb keys”, that’s 10-something keyboards as per a list I maintain, and probably a few more if you count the stuff in Unsorted keyboards and/or mystery keyboards from Aliexpress.
You could go for a Sofle, that’s very Corne-like (V1 is a direct superset) but has a number row, a few more lower row keys (good for dedicated Alt/Gui/Menu keys!), and rotary encoders. Plenty vendors make these.
More generally though, there are many keyboards! If you were to set requirements as “pre-built, low-profile, number row, at least 3 thumb keys”, that’s 10-something keyboards as per a list I maintain, and probably a few more if you count the stuff in Unsorted keyboards and/or mystery keyboards from Aliexpress.