Use TAG to guarantee your admission at UCI it looks like their threshold is 3.4 so, you should be all set. Be sure to follow the process and course list EXACTLY.
I note UCSB no longer takes TAG applicants into their college of engineering.
https://admissions.sa.ucsb.edu/docs/default-source/PDFs/ucsb-tag-fall-2016.pdf?sfvrsn=2
Unless you are local I don’t think SDSU is in the cards. UCSD and UCSB also look pretty unlikely.
SJSU publishes last year’s threshold by major here:
http://info.sjsu.edu/web-dbgen/narr/admission/rec-10079.11704.html
You should be set there.
I think you’ll get into CSULB and encourage you to take a look at CalPoly Pomona.
Good luck.