Just retake ACT and get that math score up. For example, UMich engineering requires a 31 ACT Math , MIT average is 34-36. Early college programs are still not well understood by many Adcoms, but the logic is pretty clear: if you are already in college, why can’t you get a superior ACT/SAT score?
S in early college program followed this logic - despite a 3.8 college GPA and numerous awards-and didn’t get admitted to colleges he wanted because of his ACT (similar to yours). He believed that his college grades alone would be fine and refused to study for ACT to improve - for him - it was mostly a low math score. You also have the option of continuing in your EC school as a student, and then transferring (not all of the colleges on your list accept transfers)
If you consider yourself good in math prove it to the adcoms ; retake the test and improve the score to the 75%+ of admits.