Looking for logging into the Sharepoint Sign In 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 Sharepoint Sign In site. After that you can login as usual with your login credentials.
https://www.office.com/
https://account.microsoft.com/account/office
https://outlook.office365.com/owa/?realm=tcsedsystem.edu
http://office365.creighton.edu/
https://365.ucdavis.edu/
https://www.bettercloud.com/monitor/the-academy/require-others-to-sign-in-to-view-shared-office-365-sites-documents/
https://www.cuhk.edu.hk/o365/
https://office365.browardschools.com/
https://onedrive.live.com/?gologin=1
https://community.tableau.com/thread/283164
https://sharepoint.uservoice.com/forums/329214-sites-and-collaboration/suggestions/13541985-external-folder-sharing-with-without-sign-in
https://www.uaeu.ac.ae/en/sign_in.shtml
https://support.docusign.com/en/guides/Sign-in-DocuSign-for-SharePoint