These colleges are WUE, Western Undergraduate Exchange. They offer close to in-state tuition for California students with about a 3.2 GPA.
BOISE STATE
https://admissions.boisestate.edu/apply/
COLORADO STATE
https://admissions.colostate.edu/applying-to-csu/
NORTHERN COLORADO UNIVERSITY
https://www.unco.edu/admissions/how-to-apply/first-year.aspx
NORTHERN ARIZONA UNIVERSITY (NAU)
https://nau.edu/admission/freshman-admission/
UNIVERSITY of NEVADA--RENO (UNR)
https://www.unr.edu/admissions/how-to-apply/apply-now
PORTLAND STATE
https://www.pdx.edu/undergraduate-admissions/freshman-how-when-to-apply
MONTANA STATE
https://www.msuadmissions.org/application/
UNIVERSITY OF HAWAII--MANOA
https://manoa.hawaii.edu/apply/
OREGON STATE: This college is not WUE but has good financial perks for CA students.
https://admissions.oregonstate.edu/
(The scholarships for CA students are called Golden State scholarships.)