"After a time" is a phrase used to indicate that something will happen in the future, but without specifying when. In order to avoid repetition, it's helpful to have synonyms to convey the same idea. Some possible options include "eventually," "over time," "in due course," "after a while," "after a period," "when the time is right," or "with time." These options allow for variation in sentence structure and avoid sounding repetitive while still conveying the same idea. Choosing the right synonym can also help convey a particular tone or emphasis in your writing, making it an important consideration for any writer.