Knowing you are a planner, as is your daughter, I think you can mesh the bs advice of waiting with your natural tendencies.
True confessions: I have a serious ocd streak, so I can’t help myself but do research- but there isn’t much time for kiddo to do it at school. I keep it to myself. I plan on being able to have productive conversations with him when he is ready. At a minimum, I have a say in planning tours, what is affordable, and I want to be a sounding board. So those things are my focus.
First, Find out from your daughter how much she wants you involved. Sounds like she wants you to be very involved, so…
Educate yourself on the various schools without involving her. Buy a book. Look at websites - I have started looking, and find Cappex and Niche particularly good. You can get a sense enough of the schools and what your daughter’s options generically are, what schools have what you think she would want (yes, that might change) and become fluent in college-speak. So when it is time, you can contribute to the conversation with your daughter about what she wants. That time probably starts around spring of sophomore year. YMMV. For my kid, I can’t imagine math not being an important part of his college experience, and I can’t imagine him being a wild partier. Those two guides are enough for me to have fun learning about schools.
Concurrent with your school research, Figure out how many trips during the school years your family can realistically take between now and fall senior year. For fun, map out some hypothetical tours. What can you do casually in day trips? What trips will the school do, so you don’t have to? What regions are chock full of possibilities and what ones are sparse? What will work for summer trips? All of this is subject to change (you probably won’t talk much about this stuff to your daughter yet anyway), but the process of clustering schools for a trip is illuminating in and of itself. What will travel look like if your kid ends up in that region? Does imagining your daughter far away in a school evoke any surprising feelings for you? Consider this trip planning practice for when you are planning the trips for real.
If it an issue, learn about merit aid v financial aid. And the fafsa, etc.
I guess what I am saying is prime yourself so you can hit the ground running as her support person when your daughter is home and wants to dig in. I am quite certain I am wasting my time on a lot of this because kiddo will go his own path with the help of the college counselor, but I am having fun with it anyway. So I don’t care. I am just being careful not to do my obsessing in front of him.
What I am not bothering with is anything that has to do test prep. I can’t add anything to what the school does on that front.