Take a good look at Syracuse. I think she’d get in for both majors there and would be able to double major. She’d have some decent flexibility there and while it’s not a tough admit, their CS program is getting pretty popular so she’d have lots of classmates. At Syracuse, STEM majors don’t dominate, so it’s more of a typical university vibe: lots of school spirit, active social scene, good size, even gender split. My nerd kid goes there and says everyone is “too normal” 
. It’s a great campus, fairly close to downtown.
I also think she’d get in at RIT. RIT is a similar size, but the STEM majors dominate and it’s got a more quirky nerd vibe, and there are more men than women. It’s in the suburbs, not very close to downtown. For the record, my kid loved the vibe there.