"So very" is a commonly used phrase to add emphasis to a statement. However, if you are looking for alternative phrases to give your writing variety, there are many synonyms you can use. Some options include "extremely", "exceptionally", "incredibly", "exceedingly", "remarkably", "unusually", "overwhelmingly", "absolutely", "astonishingly", "tremendously", and "extraordinarily". Using these synonyms in your writing will help you to avoid repetition and make your writing more engaging. Remember to choose the right synonym to match the tone and meaning of your sentence.