Look into Montessori schools, where they meet every child where she is, rather than where some curriculum says she should be.
My suggestion is Oak Hill Montessori in Shoreview. However, there is also a wonderful school (though generally with a long waiting list) in Minneapolis: Lake Country School.
My daughter has attended Montessori schools since she was 2, and it has been an incredible experience for both of us. (She's now 7 1/2)
In Montessori, it is expected that most children will read by the end of Kindergarten, and their elementary programs are set up for students to be independent readers. What's more, they are multi-age classrooms, so that each child has someone to look up to at one point in their career, but also has the opportunity to lead later in the cycle. Because of this, your daughter could be not only working at her own pace with her own peers, but she would also have older children that she could work with on more challenging academic tasks.
If you have any questions about Oak Hill specifically, or Montessori generally, I would be more than happy to answer them.
Otherwise, feel free to check out their website:
www.oakhillmontessori.org
or call, ###-###-####
Also, I want to clarify the difference between AMS accreditation and AMI accreditation, since I know that was posted in another response to your request. AMI stands for Association Montessori Internationale. Schools that are AMI accredited have to meet international standards that hold schools to very strict guidelines in which Maria Montessori's original vision and materials are used. Any school that is AMI accredited will look very similar, though there may be some small differences, particularly in environment. AMS stands for American Montessori Society. The idea behind AMS is that Maria Montessori's ideas have been "adapted" to American life. I am much less familiar with AMS than I am with AMI. However, I can tell you that in my experience, AMS schools tend to vary widely. Some are really good, but many are not. Finally, note that there is no trademark on the name "Montessori" and any program can slap it on their name, even if they have nothing to do with Montessori. You should be sure that the school you choose, should you decide on a Montessori education, is accredited.
Good luck!