Some classics that hold up in my opinion include:
-Charade (Audrey Hepburn and Cary grant) - thriller
-Manchurian Candidate (the original)
-Father Goose (Cary grant) - comedy
-North by Northwest (Hitchcock)
-Mister Roberts (Henry Fonda) comedy/war
-The Professionals (Lee Marvin) western
-The Magnificent Seven (Yul Brynner) western
-The Great Escape (Steve McQueen) war/espionage
-A Nuns Story (Audrey Hepburn) drama
-Shane (Alan Ladd) western
-Rear Window (Hitchcock) thriller
-Hud (Paul Newman) drama
-Cool Hand Luke (Paul Newman) prison
-Singing In the Rain (Gene Kelly) musical
-Out of the Past (Robert Mitchum) film noir
-Cape Fear (Robert Mitchum) thriller, original
-Dial M for Murder (Hitchcock) mystery
-Ivanhoe (Robert Taylor) knights/romance - okay it has some dated stuff but I still love it 😊