hopIQ found 10 beers with the same roasted and chocolate character as Schützengarten Swiss Stout. A Chocolate Sweet Stout — dark ebony with a hazelnut-brown foam. Bittersüss with aromatic hops and velvety-smooth dark chocolate character, brewed with Swiss chocolate from artisan chocolatiers. An utterly Swiss take on the stout style. Ranked by flavour match rather than popularity.
Closest match: Zonker Stout — 74%. No twin in the catalogue yet.
4 countriesmatched across 56 flavour tagsbest match 74%

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.