They are probably showing in the order they appear in your admin panel “Plugins” page.
When a WordPress page is rendered (put together for final output); WordPress goes through the list of plugins; and adds any hooks or filters in the order they are found (alphabetically).
Using Priority Parameter
The developers, when hooking to ‘the_content()’, can set a priority number as the third argument of the action call.
So you get something like add_action('the_content', 'test_function', 100).
[More Info]
Manual Workaround
If you know the name of the function used in the action hook; you can write a function in your child theme to 1) Remove the action hook, 2) Re-Fire the action hook with the third argument added.
So, if your Easy Social Share is using `easy_social_content’ as the action hook name hooked to “the_content” filter; we could do this:
remove_action('the_content', 'easy_social_content');
add_action('the_content', 'easy_social_content', 100);
Do this for each of the three plugins; and change the priority argument to be the sequence you wish them to appear.
Since a child theme code is executed last (after the theme and after all plugins are loaded)… this code will execute last… and will give you the order you desire.
Good Luck 🙂
Lemme know how you do.
