hopIQ found 10 beers with the same roasted and smooth character as Asahi Black. Asahi's dark lager — applying the Super Dry karakuchi philosophy to a dark malt base. Roasted and smooth with light coffee and cocoa notes, but finishing clean and dry rather than sweet. Rare outside Japan. Ranked by flavour match rather than popularity.
Closest match: Sagres Preta — 86%. No twin in the catalogue yet.
8 countriesmatched across 56 flavour tagsbest match 86%

No beer in the catalogue yet — these come closest.
Close on what matters, with one thing they do differently.
Same idea, less detail — open a beer to see the full comparison.