Supergirl vs Captain Marvel: Who Would Win? – Faceoff
Captain Marvel and Supergirl have some Shocking Similarities! Why do they have the same last name? - TheNationRoar
I posted an edit of Melissa Benoist as Carol Danvers/Captain Marvel last year, and today I decided to update it, as I just finished writing and uploading my Supergirl/Captain Marvel mashup fanfic :