There are several synonyms for the phrase "at various times" that can be used to add variety and nuance to your writing. One option is "at different junctures," which implies a series of distinct moments or decision points. "Intermittently" suggests a sporadic or irregular pattern, while "periodically" implies a more regular but still intermittent occurrence. "Occasionally" is a more casual alternative that suggests a less structured or predictable timeline. Finally, "from time to time" is a simple and direct way to convey the idea of something happening at irregular intervals. Using synonyms for "at various times" can help to keep your writing fresh and engaging.