CA schools with good FA packages 3.96, 4.27 weighted GPA, 1400 SAT. 2 household income ~$150k

We the parents are very cooperative.
He applied at UCSD and UCSC (loved the campus and location), and Cal Poly SLO. I just can’t imagine being able to afford any of them. For an undecided student, I just don’t think any undergraduate degree is worth a mountain of debt.

I talked with a friend who said his son (good stat student) got a good package from LMU which made it close in price to attending the UW. I am wondering whether there may be some good hidden value schools worth looking into.