Yes, this soup is great for making it ahead as you can store it in the refrigerator for up to 4 days. If making it ahead you may wish to cook the orzo separately and add it in as you reheat the soup to prevent them from soaking up the broth. Or, you can top it off with more chicken broth. Make sure to reheat over low to medium-low heat and do not allow it to heat to the point of bubbling / boiling.