Reorder the Jetpack Social buttons

As Jeff mentioned, you will indeed need to dive into code to fix this. I explained a bit how different plugins hook data at the bottom of your post content in this thread:
https://wordpress.org/support/topic/page-numbers-above-share-this?replies=3&view=all#post-7951897

In your case, Zemanta is most likely hooking its Related Posts at a priority lower than 19, that Jetpack uses.

You’ll consequently need to remove Jetpack’s Sharing buttons from their default location, and add them again at a lower priority, so they get displayed above the related posts.

To get started, add the following code to a functionality plugin:

function jptweak_remove_share() {
    remove_filter( 'the_content', 'sharing_display',19 );
    remove_filter( 'the_excerpt', 'sharing_display',19 );
    if ( class_exists( 'Jetpack_Likes' ) ) {
        remove_filter( 'the_content', array( Jetpack_Likes::init(), 'post_likes' ), 30, 1 );
    }
}

add_action( 'loop_start', 'jptweak_remove_share' );

That will remove the buttons from their default location.

Then, add the following code to add the buttons back, at a priority of 1:

function jeherve_add_buttons_back( $content ) {
	if ( function_exists( 'sharing_display' ) ) {
	    $shares = sharing_display( '', false );
	} else {
	    $shares = '';
	}

	if ( class_exists( 'Jetpack_Likes' ) ) {
	    $custom_likes = new Jetpack_Likes;
	    $likes = $custom_likes->post_likes( '' );
	} else {
	    $likes = '';
	}

	return $content . $shares . $likes;
}
add_filter( 'the_content', 'jeherve_add_buttons_back', 1 );

That should solve your issue, unless Zemanta Related Posts are also hooked at a priority of 1.

I hope this helps.

That shouldn’t be too hard. Do you see the number 1 on the last line of code you’ve added? That’s the priority at which I inserted the Jetpack buttons.

Since we don’t know the priority of the StarBox plugin and the Zemanta Related Posts, you’re going to have to play a bit with that number. Start changing it to 2, then 3, … When the buttons move to after the StarBox plugin, you’ll know that you’ve reached the priority used by that plugin. 🙂

Let me know how that goes.

You did it right, but it’s possible that both StarBox and Zemanta insert their content at priority 9. Jetpack starting with the letter J, it gets loaded before StarBox and Zemanta when all three plugins use the same priority. So you’d have no way to insert the sharing buttons between the 2 plugins.

To solve this issue, you’ll need to contact one of the plugin authors, and ask them how to move their content like you’ve just done with Jetpack’s sharing buttons. Once you know how to do it with one of the other plugins, you’ll be able to set 3 different priorities in the order you prefer.

I hope this helps.