I just picked up a pre-owned 2015 Stigmata CC based on similar requirements you noted. Got some initial rides on it this weekend and very pleased with the purchase.
https://forums.thepaceline.net/showthread.php?t=241319
There seem to be deals popping up on pre-owned similar to mine or NOS 2019 deals as the 2020 model is now out and one that folks are wanting to upgrade to. Revisions include but not limited to, ability to accommodate 42 mm tires or 650 option. Also added eyelets for "adventure/expedition" racks and revised the BB to threaded (was PF30). Saw a new 2020 model w/ the 650 wheel option in a shop yesterday and looks like they also made the tubes fatter.
If none of these 2020 model updates matter to you, the 2015-19 versions have great road feel with predictable handling off asphalt.
Havent ridden one yet but the Ibis Hakka gets great reviews as a road and all-arounder.