Here are some examples of how it can be used:
* "After years of hard work, she finally topped the heap in her company and became CEO."
* "He was the top student in his class, always topping the heap with his grades."
* "The new restaurant quickly topped the heap in the city's food scene."
The idiom "top the heap" implies a position of superiority and often suggests that there has been competition or a journey to reach this position.