Welcome, clarinetmom.
There are several sources for the information you need. One is the other clarinet students and parents on this board. Another is your daughter's teacher. If she happens to be in a youth symphony, you may get some suggestions from the students, parents and staff there.
I would suggest that you start by looking for references to teachers rather than schools. The conventional wisdom is that, while there are important matters to consider that align with the school, the key element of the experience is the relationship between teacher and student. Also, since your daughter is still over two years away from starting, teachers sometimes retire or change schools and that can change the whole outlook of a particular school literally overnight.
Has your daughter begun to apply to competitive summer programs? They are excellent opportunities to meet individual teachers in person. She will also get connected in with the larger clarinet community in which the wisdom you seek resides.
There has got to be a national or international clarinet society. Yes, I just found one at clarinet.org. Is your daughter a member? That is yet another place to look.
EDIT: To save violadad the trouble, I will plug my own thread at
So You Want To Be Music Major - One Family's Experience in which I explained how we handled a similar situation on double bass.