Hey there, Hi there, Ho there Amanda!
Thanks so much for stopping by the Disney Parks Moms Panel with your question. You and your little ones are going to create such magical memories together at the Happiest Place on Earth!
My preschooler just loves meeting his favorite Characters in the parks as well. While it has been a while since I have spotted Sofia the First in the parks, you never know who may show up during your visit. When we met her a couple years ago she was located in Hollywood Land at Disney California Adventure Park. Each day Character appearances are different, so you will want to check in the morning on the
Disneyland app for the day's schedule of Character meets in both parks.
If your kids are fans of Disney Junior programming, they will absolutely love the
Disney Junior Dance Party! in Disney California Adventure Park. My son loves this party atmosphere where he can dance off some energy while I can rest my feet. Outside of this location is also typically where Disney Junior Characters tend to meet Guests, so keep your eyes peeled.
I hope this helps, and please return if you have any other questions. Have a magical day, and see ya real soon!
-Jennifer