hopIQ found 10 beers with the same clean and malty character as Warsteiner Premium Pilsener. Germany's largest privately-owned brewery — the Cramer family in Warstein, Sauerland since 1753, now nine generations in under Catharina Cramer. Brewed to the Reinheitsgebot on extra-soft Kaiserquelle spring water from the Arnsberg forest, two-row spring barley and Hallertau hops. 4.8% vol., pale gold, clean malt-forward with a mild, dry finish. Ranked by flavour match rather than popularity.
Closest match: Waldhaus Diplom Pils — 94%. Same cleanness and malt character, with a bitter edge Warsteiner Brauerei keeps quiet.
4 countriesmatched across 56 flavour tagsbest match 94%

The beer that reads most like the one you started from.
Close on what matters, with one thing they do differently.
Same idea, less detail — open a beer to see the full comparison.