CS admit rates for the following schools 2021:
UCI was 7%.
Cal Poly SLO around 9%
UCSD no data found but probably comparable to UCI.
None of these would be matches.
UCSC according to their 2021 admit data had a 71% admit rate for CS but I know that for 2022, it was significantly lower.
UCR CS admit for 2021 was 37%.
Affordability will be important for the UC’s.
What about some of the WUE schools? https://www.wiche.edu/tuition-savings/wue/wue-savings-finder/