I went with a Dygma Raise: https://dygma.com/ https://dygma.com/ It's a staggered, 60% split keyboard, with the spacebar replaced with an 8-key thumb cluster.

I went with a Dygma Raise: https://dygma.com/ https://dygma.com/ It's a staggered, 60% split keyboard, with the spacebar replaced with an 8-key thumb cluster. The familiar layout minimized my learning curve and their custom layout software is decent.