alight upon (?.)

• blunder upon
• bump into
• chance upon
• come across
• come among
• come down on
• come on
• come up against
• come upon
• confront
• descend upon
• discover serendipitously
• drop on
• encounter
• fall across
• fall among
• fall foul of
• fall in with
• fall on
• fall upon
• happen upon
• hit upon
• light upon
• meet
• meet head-on
• meet up with
• meet with
• pitch upon
• run across
• run into
• run smack into
• run up against
• run upon
• settle on
• strike upon
• stumble on
• stumble upon
• tumble on