The phrase "piece of the action" is often used to refer to having a share in something, especially in terms of financial gain. There are several synonyms that can be used to convey this same meaning. Examples include "slice of the pie," "part of the budget," and "cut of the profits." Other options could be "portion of the proceeds," "share of the spoils," or "chunk of the income." These alternatives can add variety to written or spoken language and prevent repetitive phrasing. Overall, using synonyms can help to accurately convey meaning and create a more engaging and professional tone.