The phrase "commented on" is often used when discussing someone's input or opinion on a particular subject matter. However, there are numerous synonyms that can be utilized to avoid repetitive language. Some possible alternatives might include phrases such as "remarked upon," "noted," "shared thoughts," "provided input," "voiced an opinion," "explored," "discussed," or even "analyzed." Each of these suggestions offers a slightly different connotation, allowing writers to add nuance and variety to their overall message. By incorporating a range of synonyms, writers can keep their language fresh and interesting, providing readers with a more engaging and diverse reading experience.