Change term links to point to a specific URL

<?php

// Add the following to your (child) theme's functions.php

add_filter( 'term_link', function( $termlink, $term, $taxonomy ) {
    if ( 'category' == $taxonomy ) {
        $termlink = '/good-stuff/?_categories=' . $term->slug;
    }
    return $termlink;
}, 10, 3);