When it comes to synonyms for "get back to", there are numerous options to choose from. One popular choice could be "return to", which implies a sense of coming back to or re-engaging with something. Another option might be "reply", which is more specific to responding to a message or communication. "Resume" is also a great alternative, particularly when referring to picking up where you left off on a project or task. "Reconnect" is yet another possibility, especially when the focus is on getting in touch with someone after a period of time. Ultimately, the best synonym will depend on the context and intended meaning of the phrase.