The Best way to Redirect my homepage in Multisite

With the structure you’re describing, a 301 (permanent) redirect is probably what you need in terms of SEO. If you want to do this without touching anything on the server, a 301 redirects plugin would do the job.

The more efficient approach would be to put a 301 redirect in your .htaccess file on the server. There’s an explanation of this at https://www.rapidtables.com/web/dev/htaccess-redirect.htm. The reason it’s more efficient is because visitors to your site will be redirected before WordPress starts loading, while if you use a plugin, it happens afterwards. This takes up more time and server resources.

A WordPress-specific tutorial is at https://www.inboundnow.com/how-to-properly-set-up-wordpress-301-redirects/.

Hi!

You can use the code bellow:

function wpsites_redirect_ms_front_page() {
    if ( is_main_site() && is_front_page() ) {
        wp_redirect( 'https://www.example.org/news/', 302 );
        exit;
    }
}
add_action( 'template_redirect', 'wpsites_redirect_ms_front_page' );