There are several social login WordPress plugins that are popular among users, including:
1. Nextend Social Login: This plugin allows users to log in and register with their social media accounts, such as Facebook, Google, and Twitter.
2. Social Login by miniOrange: This plugin supports multiple social media platforms and also allows users to log in and register with their social media accounts.
3. Super Socializer: This plugin not only allows social login, but also includes social sharing and social commenting features.
4. Social Login by OneAll: This plugin supports a wide range of social media platforms, including Facebook, Google, Twitter, LinkedIn, and more.
5. Social Login by WordPress.com: This plugin allows users to log in and register with their social media accounts, as well as their WordPress.com account.
It’s important to note that you should always research and test a plugin before installing it on your website to ensure it meets your specific needs and is compatible with your theme and other plugins. Additionally, you should always keep your plugins updated to ensure they continue to function properly.