Wrap oEmbed html in custom div - https://www.damiencarbery.com/2018/02/wrap-oembed-html-in-custom-div/

oembed-wrapper-div.php

<?php
/*
Plugin Name: oEmbed wrapper div
Plugin URI: https://www.damiencarbery.com/2018/02/wrap-oembed-html-in-custom-div/
Description: Add a wrapper div to YouTube embeds.
Author: Damien Carbery
Version: 0.1
*/

function dcwd_youtube_wrapper( $html, $url, $attr, $post_ID ) {
	$classes[] = 'social-embed-container';
    if (stripos($url, "youtube.com/") !== FALSE || stripos($url, "youtu.be/") !== FALSE) {
		$classes[] = 'video-container';
    }
    return '<div class="' . implode( ' ', $classes ) . '">' . $html . '</div>';
}
add_filter( 'embed_oembed_html', 'dcwd_youtube_wrapper', 10, 4 );