Check out the articles from this thread. Take your time going through.
Look into the room size options at Cabana Bay. You have like 7 people right? Standard/Family Suite/2 bedroom Family Suite.
You guys should definitely take some time this winter and watch the first couple Harry Potter movies. The Wizarding World is the highlight of UOR, so it’s a bonus to get a little familiar with Potter. The atmosphere at Diagon Alley in USF and Hogsmeade in IOA are unreal to experience.