+1 on the finances, that is SO key. You can do that research yourself, without her, as to what financial aid you might qualify for, and what you can afford.
She might want to try the SAT near the time of the PSAT so a little prep for both can be done at once. My kids didn’t do major prep but they did familiarize themselves with the format and some basic tricks/tips. One go at the ACT can help too, in case she scores much higher on that, some kids do. As a bonus, if the ACT goes well, for 99.9% of schools she can skip the SAT Subject tests and just the ACT with writing instead.
Her high school may do college night type things - she/you/whatever is appropriate should go.
We tacked on a college visit or 2 to trips taken for other reasons. Also hit up a couple of local schools on school days off. It helped my kids focus on what they liked and didn’t, got them thinking and aspiring.
An eye to scheduling can help too - if selective schools are the target, she may need 4 years of foreign language, for instance.