The phrase "just as soon" is often used to express a preference or desire for one option over another. Synonyms for this phrase include "preferably," "rather," "sooner," and "promptly." Similar expressions that convey a similar sentiment include "as soon as possible," "at the earliest convenience," "without delay," and "as soon as practicable." It is important to choose a synonym that accurately conveys the intended meaning, as using the wrong phrase can cause confusion and misunderstanding. By choosing the appropriate synonym, the speaker or writer can effectively communicate their desires or preferences while maintaining clarity and understanding with their audience.