When it comes to expressing the idea of being "on top," there are plenty of synonyms that can help you vary your language. For starters, you might use terms like "dominant," "superior," or "preeminent" to emphasize your position of power. Alternatively, you could use phrases like "at the forefront," "leading the way," or "in the driver's seat" to convey a similar sense of control. Other options might include "in command," "ruling the roost," or "calling the shots." Whatever phrasing you choose, the key is to capture the idea of being in charge, on top, and ahead of the pack.