different online Harvard citation styles
I completely agree with the comments. It would be useful to see what the journal wants. You could also check recent works published in the journal you are interested in to verify the appropriate Harvard citation format for publication.
Having said that, personally, I like option 2 for its brevity:

Cillizza, C. (2020). The absolutely remarkable social media power of Alexandria Ocasio-Cortez. CNN. 24 July 2020. Available at: https://edition.cnn.com/2020/07/24/politics/aoc-ted-yoho-cspan/index.html (Accessed: 23 October 2020).