The phrase "you ought to see/hear/meet etc." is commonly used to recommend something to someone. However, there are ample synonyms available for this phrase that can be used to convey the same message in different ways. Some alternatives to "you ought to see/hear/meet etc." include "you should check out", "you need to experience", "you must witness", "you have to encounter" and "you definitely should see/hear/meet etc." Each of these phrases conveys a sense of urgency and enthusiasm for experiencing something new and exciting. By using these synonyms, you can add more variety and depth to your vocabulary while expressing your recommendations to others.