When it comes to the phrase "sails along," there are a few great synonyms that can be used depending on the context. If the focus is on something moving smoothly or easily, synonyms like cruising or gliding could be appropriate. Alternatively, if the focus is on speed, words like speeding or dashing may be used instead. For something that is more deliberate and calculated, words like progressing or advancing could be used to describe how something is moving forward. Finally, if the context is more nautical, synonyms like navigating or steering may be more appropriate to describe how a ship is moving along the water. Ultimately, the best synonym to use for "sails along" will depend on the specific context and what exactly you are trying to convey.