Hello Abigail! Welcome back to the Disney Parks Moms Panel.
I remember booking early Advanced Dining Reservations for my family at Crystal Palace to get a family photo of an empty Main Street, U.S.A. With the
new Let the Magic Begin Welcome Show, Guests are granted access to main Street, U.S.A before the park officially opens so the task of being in Magic Kingdom before most of the other Guests has become even trickier. On a day with Extra Magic Hours for Walt Disney World Resort Guests? Abigail, you do like a challenge!
You are right to focus on Morning Advanced Dining Reservations or Early Morning tours for this earlier entrance. Other than Crystal Palace, two Magic Kingdom restaurants that you may book
Advanced Dining Reservations before Extra Magic Hours are Be Our Guest Restaurant and Cinderella's Royal Table.
As far as tours,
Disney's Keys to the Kingdom Tour, Walt Disney: From Marceline to the Magic Kingdom Tour and Disney's the Magic Behind Our Steam Trains Tour all start before or at the same time as the Extra Magic Hours begin.
In addition, you may book a reservation at
Bibbidi Bobbidi Boutique in Magic Kingdom for the same time Extra Magic Hours are slated to begin.
For these experiences, there should be a special queue for Guests to enter the Magic Kingdom. In my experience, it has been on the absolute far left of the main entrance near the Newsstand Shop.
Note that Park Hours and Extra Magic Hours may change without notice.
Good luck for your early morning adventure!