RxJS operators such as map, filter, and mergeMap are commonly used for transforming and filtering data streams.Partition helps to handle different types of data in separate streams based on the predicate.CombineLatestWith is perfect for synchronizing multiple streams in real-time.Audit ensures precise throttling without losing the latest value.The expand operator can be used for recursive operations like recursive API calls or tree traversals.The groupBy operator splits an observable into multiple observables, grouped by a specified key.Using these lesser-known operators can make your code more efficient and elegant.Combine partition with expand for advanced logic.Choose operators based on your data flow requirements.Start experimenting with these examples, and watch your Angular applications become more dynamic and powerful!