As we have advised, do not rush to make your decision. Open Enrollment runs until November 30. There is no prize for who finishs first. These choices will have a major impact on you for the entire 2021 year.
As you go through the enrollment process, the website gives you comparisions in terms of plans and costs. Read everything carefully, and make sure you pick the plan that works best for you. If you have questions, use the "Contact Us" button at the top of the page.