に限る

に限る is used to express that something is restricted to a certain group or case, or to claim that something is the best option among choices. It often highlights exclusivity (limited to) or emphasis that something is the preferred or ideal choice in a given situation. Commonly used with nouns to specify who or what is included, and with phrases like この場合 to indicate a situation where the statement applies. It can also convey a sense of “nothing beats” when talking about the best option for a price, quality, or situation.