Devi

The plugin Changes wordpress user slug for security reasons, it prevents access to the usernames of registered users on your site.
By using “Simply Change Author URL” The WordPress default users(authors) Slug and URL addresses will be changed automatically.
By Default Author URL is: <code>example.com/author/[username]/</code> 
after install this plugin URLs will be changed to: <code>example.com/user/[user_id]/</code>
This will protects the usernames from being easily accessible by cyber attackers.
This plugin also: 
1. Removes wordpress api user endpoints. (they contain information about users) 
1. Changes canonical links generated by yoast.

Simply Change Author URL

Changes wordpress user slug for security, it prevents access to the usernames of registered users on your site.

CantonBolo

The default author posts link of WordPress is like ‘http://example.com/?author=1’ or ‘http://example.com/author/111’, this plugin can help you easy to change it.
WordPress默认的作? 文章链接通常是 ‘http://example.com/?author=1’ 或? ‘http://example.com/author/111’，这个插件能帮你改变作? 文章链接的格式。
e.g.
<pre><code>http://example.com/user/111 </code></pre>
or
<pre><code>http://example.com/member/111 </code></pre>

Style Author Base

This plugin can change the author posts link.

Simply Change Author URL vs Style Author Base