It depends on what you are looking for. My older son was interested in comp sci so his safeties were WPI and RPI. (We’re on the east coast. If we’d been in CA, it would have been a UC.) My younger son was interested in International Relations so his safety was American. You need a school where either there are automatic admissions based on grades and/or scores, or where your stats put you well into the top 25% of the applicant pool and more the a 50% acceptance rate. (That’s probably not a 100% safety, but for most will be likely enough.) I’d look for schools with top-notch psych programs that are less selective.