For 60% boards, the HHKB (Happy Hacker’s Keyboard) which is built with Topre switches mentioned in my other comments has this layout. There’s also boards with MX style switches that mimic the HHKB, such as the Tokyo60.
For 65%, things get more spotty. Off the top of my head I’m not aware of any prebuilt 65% boards that use this layout.
For both 60% and 65%, there’s a huge number of build-it-yourself kits as well as separate PCBs, cases, etc that support this layout. It’s a bit of a rabbit hole (as alluded to with this post’s title), but if you have the patience by far building your own board gives you the greatest degree of control.
I've been rocking a Poker with clears for years, so unless I go on a big exploration, I already know what I mostly like. I went to a meetup right before the pandemic and I was amazed at how many new switches there were since I stopped buying new keyboards five years prior.
I'm familiar with the idea of the HHKB and am looking up the Tokyo60 now.
For 65%, things get more spotty. Off the top of my head I’m not aware of any prebuilt 65% boards that use this layout.
For both 60% and 65%, there’s a huge number of build-it-yourself kits as well as separate PCBs, cases, etc that support this layout. It’s a bit of a rabbit hole (as alluded to with this post’s title), but if you have the patience by far building your own board gives you the greatest degree of control.