Shadowing Opportunities?

Hi,
I am a junior in high school this year and am looking for shadowing opportunities. I simply can’t seem to find any physician or doctor that allows this. I’m applying to BS/MD programs so shadowing is an absolute must. I live in the northwest suburbs of chicago if that helps narrow it down. Anybody have any tips or know any doctors that allow shadowing? It seems to be getting harder now since I’m out of doctors that I personally know / have consulted.