Looking for logging into the Mern site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Mern site. After that you can login as usual with your login credentials.
https://blog.bitsrc.io/build-a-login-auth-app-with-mern-stack-part-1-c405048e3669
https://medium.com/@Keithweaver_/building-a-log-in-system-for-a-mern-stack-39411e9513bd
https://www.youtube.com/watch?v=s1swJLYxLAA
https://www.youtube.com/watch?v=S9maJY5JcZc
https://www.youtube.com/watch?v=SrT6T52e1q4
https://www.youtube.com/watch?v=2FA8XYhQ3Ks
https://www.oreilly.com/library/view/mern-stack-front/9781789343120/video7_3.html
https://hackernoon.com/m-e-r-n-stack-application-using-passport-for-authentication-920b1140a134
https://www.djamware.com/post/5a90c37980aca7059c14297a/securing-mern-stack-web-application-using-passport
https://www.freecodecamp.org/forum/t/login-system-of-mern-stack/238334
https://github.com/didinj/mern-stack-authentication
https://github.com/topics/mern-login
https://alligator.io/react/mern-stack-intro/