For Likely/Safety schools, start with your in-state Washington options. Since you live in Washington, the WUE (Western Undergraduate Exchange) will have a list of schools were you get reduced OOS tuition and some of these schools might be of interest. Save On Tuition | Western Undergraduate Exchange (WUE)
You say you are full pay but is there a budget limit/year that your parents are willing to pay? Also if you are hoping for some merit aid, then definitely do some test prep since many merit scholarships/aid will ask for test scores.