Your daughter still has time to raise that ACT score. In the meantime, have her try the SATs online to see if she prefers them. I suspect she will stick with the ACTs because many STEM kids prefer the ACTs. But if she gets better results on the SATs, by all means try them. Is she in school currently? If so she can get a fee waiver for the SAT and also the ACT (both).
If she can bring up her test scores, Dartmouth, women’s colleges and the top schools would be good possibilities. If she gets accepted by QB for College Prep (apply before due date in February) she will have some good opportunities. Fly-ins are an excellent way to judge her chances.
I agree with ^ that it is good to start defining other aspects, such as geography (how far away she can go), does she want a large research university or a small intimate school, and are there any factors that might guide her search.