I have a moonlander and love it, but that's technically columnar and not ortholinear since it's staggered rows. One thing I like is the Oryx software that I found very intuitive and easy to use to update layouts and layers. Although some question build quality, it was cheap to find someone on printmything to 3d print extra feet for the thumb cluster to add stability to the cluster. Swapping switches was easy as well and installed U4Ts to get more tactile feel.
But I found it helpful to print shit out and play with it on a desk to get a feel for size and layout difference in lieu of seeing a real keeb. You can get creative with folding stuff or angled binders to simulate tenting options as well. This tool lets you do size comparison and print out different keyboard layouts on paper. https://jhelvy.shinyapps.io/splitkbcompare/