Looking for logging into the Line Social 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 Line Social site. After that you can login as usual with your login credentials.
https://developers.line.biz/line-login/overview
https://developers.line.biz/en/docs/line-login/web/integrate-line-login-v2/
https://qiita.com/nkjm/items/c8eac296dfee14fe5cf7
https://qiita.com/0918nobita/items/0a5846ac126a399210f7
https://snsdays.com/line/social-plugine-iine-login/
https://social-plugins.line.me/ja/
https://media.line.me/ja/how_to_install
http://milk0824.hatenadiary.jp/entry/2016/04/08/021052
https://did2memo.net/2018/09/03/naver-line-timeline-katteni-iine/
https://engineering.linecorp.com/ja/blog/introducing-the-line-login-platform/
https://socialplus.jp/line/autologin
https://socialplus.jp/line/
https://socialplus.jp/content/sociallogin