The phrase "had a go" is often used to describe attempting something or trying out a new activity. There are many different synonyms that can be used to convey this same sentiment, such as "attempted," "undertook," "endeavored," "tried," "tested," and "sampled." Each of these words can be used in various contexts, depending on the situation and tone of the sentence. For example, "attempted" and "undertook" might be more appropriate in a formal or serious setting, while "sampled" and "tried" might be more casual or playful. Overall, there are many ways to express trying something new or taking a chance, and each synonym adds a slightly different nuance to the meaning.