"Ride tall in the saddle" is an idiomatic expression that means to be confident and in control of a situation. There are several synonyms that can be used in its place to convey the same meaning. One option is "stand tall," which suggests a strong and resilient posture. Similarly, "hold your head high" implies confidence and self-assurance. "Sail through" describes handling a situation with ease and grace. "Take charge" or "assume control" conveys a sense of authority and leadership. Finally, "be command" implies expertise and knowledge in a specific area. In any case, these synonyms can help to express a sense of confidence and empowerment in one's abilities and actions.