If you are family of 2 you could use an 3 quart instant pot.  You would use only 1 carton of chicken broth and adjust your ingredients accordingly. Personally, this Instant Pot soup recipe was made in an 8 quart instant pot.  I used the u003ca href=u0022https://amzn.to/2o8y2YHu0022u003eInstant Pot Ultra 8 Qt 10-in-1 Multi- Use Programmable Pressure Cookeru003c/au003e.