My D22 is going through this as well but we’re in the UK. She told me that her “form tutor” (probably equivalent to a US “homeroom teacher” but I don’t know how things have evolved in the US since my school days there) will gather feedback from all of her current teachers (all of them relevant to the course she’s planning to study at university) and then someone else (my D22 doesn’t know who) writes an overview/synthesis. This consolidated reference is then reviewed by the school’s higher education coordinator.
In short, it might be a good idea to have both your school counselor and relevant teachers involved. Hope this helps.