Filter to wp_list_authors

wp_list_authors(), displays a list of the sites’s authors (users), and if the user has authored any posts, the author name is displayed as a link to their posts.

Use

 $authors = get_users( [ 'role__in' => [ 'auther'] ],
                // add other parameters
                );

Then loop through $authors to create your own list.

foreach ( $authors as $author ) {
    // your list goes here
}

I hope this helps to start.