Look at collegeswimming. com, also each school’s website will have the team’s statistics, so you can see where your times would be competitive, and which schools might have a need for someone in your events. Where you see a fit you should reach out to the coaches, and fill out the online recruiting questionnaires.
Will you graduate in 2021?
What are your GPA and test scores? These do have to be in the general ball park for these highly selective schools.
Also, will you be applying for Financial Aid? Even though these schools are need blind, many coaches typically ask whether the student is applying for FA.