May I suggest you consider a 100% play-based preschool? My DD4 goes to one and she LOVES her school. I was so worried about sending DD to preschool but she is thriving and we all couldn't be happier.
Another thing that has worked well for us is redirecting her passion for learning into extra curricular activities. She still loves to read and she still loves numbers but her main focus is to excel in music that is keeping her pretty busy.
Kindergarten is a huge issue for us too but for now, we're in a good place. We love all of DD's teachers.
