I can't be bothered to keep up with the industry, so I'd just go blindly off Bicycle Quarterly reviews. Firefly is about the top of the line, I guess, so I'd go with one of their gravel bikes in 26" with low trail, but I'd spec cantilever brakes instead of discs because I've not had a good experience with discs (and because it's hard to teach this old dog new tricks).
If the wait list is not horrible, that is. If unable to get a Firefly, I guess I'd get a Moots Routt. Carbon gives me the heebie jeebies.
But
Salamandrine that Calfee looks really cool, sorta art nouveau. It's tempting just for the aesthetic, let alone the great reputation they have!