core/media-text

I need a guide to solve the problem with all the gutenberg blocks, I searched and found nothing, can you help me, I can’t find a list of block types either, I had to search one by one, they are these:

'archives',
'audio',
'button',
'categories',
'code',
'column',
'columns',
'coverImage',
'embed',
'file',
'freeform',
'gallery',
'heading',
'html',
'image',
'latestComments',
'latestPosts',
'list',
'more',
'nextpage',
'paragraph',
'preformatted',
'pullquote',
'quote',
'reusableBlock',
'separator',
'shortcode',
'spacer',
'subhead',
'table',
'textColumns',
'verse',
'video'

but my question is how can I customize the blocks the most I could do is this little code and call them from their function

function post_media() {
 global $post;
	$blocks = parse_blocks( $post->post_content );
	foreach( $blocks as $block ) {
		if( 'core/media-text' === $block['blockName'] ) {
      echo render_block( $block );
      break;
    }
  }
}

<div class="photos">
        <?php  echo post_media() ?>
    </div>

can you guide me on the path of the light of the hidden code?
Thanks