haruki8

This Simple plugin allows you to show related post link to your specify page.
Place shortcode<code>[show_posts_link]</code> in page you want to display post title.
It is necessary to make ‘a page title’ and ‘the tag of the posts’ the same character string.
Then, you can see the related posts title on specify page entry.
If you need to change the number of display related posts title, you can change 
the number in admin page.
If you can read Japanese, check this URL. More detail. 
http://www.checksite.jp/develop/simple-related-posts-in-page/

Simple Related Posts in Page

This plugin will show related post links to page if page title and post tag is equal. Use shortcode [show_posts_link].

Gerasimos Tsiamalos

Anastis Sourgoutsidis

Most of the “related posts” plugins out there while they provide some kind of control on how to create related posts, they all rely on an algorithm 
and the results are automatic. With CPTR you get total control as you can manually select the posts that you want to relate.

Custom Post Types Relationships (CPTR)

This plugin will let you create custom post relationships among posts, pages and custom post types.

Simple Related Posts in Page vs Custom Post Types Relationships (CPTR)