WP Query to Get Array of Slugs

Just run a normal tax_query and set the field parameter to slug in the query. I assume that you already have a way getting the array of slugs

(Requires PHP5.4+)

$args = [
    'post_type'      => 'product',
    'posts_per_page' => 12,
    'tax_query'      => [
        [
            'taxonomy' => 'TAXONOMY_NAME',
            'field'    => 'slug',
            'terms'    => ['something', 'something-again', 'something-else'],
        ]
    ],
];
$loop = new WP_Query( $args );

EDIT

From comments, these slugs are in actual fact post slugs and not term slugs. In this case, you will need to query posts with get_page_by_path(). You will need to have an array of slugs and then use a foreach loop to query the posts

You can try the following: (Just make sure the post type is correct, I have used product here)

$slugs_array = ['something', 'something-again', 'something-else'];
foreach ( $slugs_array as $v ) {
    $post = get_page_by_path( $v, OBJECT, 'product' );
    // If we don't have a valid post object, continue
    if ( !$post ) 
        continue;

    // Setup postdata to make template tags available   
    setup_postdata( $post );

    the_title();
}
wp_reset_postdata();