Hi Heather,
Isn't it such a joy to plan a WDW trip? And as a family of 5, we have stayed at Disney's Port Orleans Riverside Resort many times. However, we have found it is fun to experience new resorts when we've had a chance to do so. You, too, may enjoy trying a new resort such as
Disney's Caribbean Beach Resort, which does accommodate up to 5 adults in some of their guest rooms. In addition to those resorts, there is a long
list of resorts that can sleep 5 guests. From all these different resorts, you'll find many theming options, budget options, and theme park proximity to best meet your family's needs.
Enjoy exploring all the resorts; I know I can get lost looking at all the photos of the resorts! As you begin looking at more of the options available to you, please let us know if you have any questions.
Happy trip planning!
Kara