When we say "someone's getting there," we mean that they are making progress towards achieving a goal or reaching a destination. There are many ways to express this sentiment using synonyms. For example, we could say that someone is "making headway," "getting closer," "nearing their objective," or "approaching their destination." Other synonyms include "making strides," "moving forward," "getting ahead," "making progress," or "closing in on their target." No matter which synonym is used, the message remains the same: the person in question is steadily moving towards achieving their desired outcome.