If you decide on a northern California tour, you may want to throw in U. of the Pacific. They give very generous merit aid, it’s ABET-accredited for computer engineering, computer science, and electrical engineering, among other areas, and I’m pretty sure that there’s no need to declare a major, so she could find what fits her best. With 3300 undergrads, it will be a much more intimate experience than at the various California publics.
If you’re looking at southern California, then you may want to consider Loyola Marymount. This school in L.A. has about 7k undergrads, so not small, but a big difference with the Cali publics. ABET-accredited for civil, electrical, and mechanical engineering and has a popular CS major. I don’t think your D would need to declare her major here either.