There’s several out there depending on what you want. I don’t mess with anything like ortholinear or Ergodox because the stagger is weird. So in the “regular keyboard but split” space, if you don’t want to build your own, there’s the cloud9, the dygma raise 2, and even such like the Feker Alice looks cool too - it’s not mechanically split but does give the split curve feel like the MS Ergo.