Add additional fee to shipping options based on Shipping Class

functions.php

add_filter( 'woocommerce_package_rates', 'adjustment_in_rates_of_product_with_shipping_class', 10, 2 );
function adjustment_in_rates_of_product_with_shipping_class( $available_shipping_methods, $package ) {
    
    // Shipping class IDs that need to add extra cost
    $shipping_class_ids = array(
        0,
        1,
    );

    // Give here extra cost you want add
    $extra_cost = 10;

    $shipping_services = array(
        'wf_shipping_ups:01',
        'wf_shipping_ups:02',
        'wf_shipping_ups:03',
        'wf_shipping_ups:07',
        'wf_shipping_ups:08',
        'wf_shipping_ups:11',
        'wf_shipping_ups:12',
        'wf_shipping_ups:13',
        'wf_shipping_ups:14',
        'wf_shipping_ups:59',
        'wf_shipping_ups:54',
        'wf_shipping_ups:65',
        'wf_shipping_ups:92',
        'wf_shipping_ups:93',
        'wf_shipping_ups:94',
    );

    $shipping_class_exists = false;
    foreach(WC()->cart->get_cart_contents() as $key => $values) {
        if ( in_array($values['data']->get_shipping_class_id() , $shipping_class_ids) ) {
            $shipping_class_exists = true;
            break;
        }
    }

    if ($shipping_class_exists) {
        foreach ($available_shipping_methods as $key => $value) {
            $available_shipping_methods[$key]->cost += $extra_cost;
        }
    }
    return $available_shipping_methods;
}