The phrase "on head" can be substituted with different synonyms to add variety and depth to your writing. Some alternatives for "on head" include "atop," "upon," "perched," "resting," and "sitting." You can also consider using more descriptive terms such as "balancing," "crowned," or "adorned." Depending on the context and tone of the sentence, different synonyms may work better than others. It's important to choose the right word to accurately convey the intended meaning. Experiment with different synonyms for "on head" to make your writing more engaging and dynamic.