The phrase "make a choice of" can be replaced with several other synonyms, depending on the context and tone of the sentence. Some synonyms include "pick", "choose", "select", "decide on", "opt for", "settle on", and "commit to". These synonyms all convey the act of making a decision or choosing between options. However, each synonym can also add a unique nuance to the sentence. For example, "opt for" can suggest a preference or desire, while "commit to" implies a more serious or deliberate decision. Ultimately, the choice of synonym depends on the writer's intended meaning and the overall tone of the sentence.