Your university is determined by your subject area. Most of our subject areas are supported only by one of our partner universities. There is no need to reach out to any universities, do wait until our team invites you to apply to your particular university. In the interim, be sure to prepare all relevant materials that will support your enrollment.
Note that upon assignment to a university, you will have a small window of time to appeal your university assignment. Do know that this often means changing your subject area.