When it comes to leadership roles, there are many different ways to convey the idea of being in charge. If you're looking for synonyms for the phrase "am head of," some options might include "hold the position of," "direct," "manage," "lead," "govern," "command," "oversee," "supervise," "preside over," or "have oversight for." Each of these alternatives offers a slightly different nuance of meaning, depending on the specific context and the nature of the leadership role involved. By using a variety of different ways to express your leadership position, you can help to keep your writing fresh and engaging and avoid repetition or monotony.