"Who needs something?" is a common phrase used to inquire about the needs or desires of others. However, there are several synonyms that can be used to express the same sentiment. "Who requires assistance?" can be used in a formal setting to ask about specific needs. "Who is in need?" can be used to express concern for someone who might require aid. "Who desires something?" can be a way to inquire about less pressing needs or wants. "Who could benefit from something?" can be used to ask about possible opportunities for improvement or assistance. Regardless of the phrasing used, these synonyms all aim to find out what someone needs or wants in order to provide assistance or support.