Right along can be replaced with several synonyms that convey a similar meaning. One option is "continuously," which emphasizes an uninterrupted flow of movement or action. "Uninterrupted" itself may also be used in this context, stressing a lack of interruption or discontinuation. Other possible synonyms for right along include "steadily," "constantly," "consistently," and "unceasingly." These words are all useful for expressing ongoing or continuous progress or action. They can be applied to a wide range of situations, from physical movement to intellectual or creative pursuits. Ultimately, the choice of synonym will depend on the specific context and tone of the sentence.