stoxello

Stoxello SEO Toolkit gives site owners a focused set of search optimization controls for posts, pages, public custom post types, and site-wide SEO defaults.
Plugin page: https://stoxello.com/platforms/stoxello-seo-toolkit/
Features include:
<ul>
<li>Per-post SEO title and meta description fields.</li>
<li>Search preview and lightweight SEO checks in the editor.</li>
<li>Focus keyphrase checks for title and description coverage.</li>
<li>Canonical URL controls.</li>
<li>Per-post noindex and nofollow controls.</li>
<li>Open Graph and Twitter card output.</li>
<li>Organization, WebSite, WebPage, Article, BlogPosting, Product, SoftwareApplication, FAQPage, and breadcrumb JSON-LD output.</li>
<li>Site-wide defaults for organization name, logo, and social image.</li>
<li>XML sitemap at <code>/stoxello-seo-sitemap.xml</code>.</li>
<li>Automatic sitemap discovery in <code>robots.txt</code>.</li>
<li>Google and Bing webmaster verification tags.</li>
<li>Breadcrumb shortcode: <code>[stoxello_breadcrumbs]</code>.</li>
<li>WordPress media selector for the organization logo.</li>
<li>Title separator control.</li>
<li>Author and date archive noindex controls.</li>
<li>Attachment page redirects.</li>
<li>Optional taxonomy URLs in the XML sitemap.</li>
</ul>
All included features are available immediately in this WordPress.org plugin.

Stoxello SEO Toolkit

Focused SEO controls for WordPress content, social previews, schema, robots rules, canonicals, breadcrumbs, and sitemaps.

Mark Jaquith

Extension for Nice Search plugin (https://wordpress.org/extend/plugins/nice-search/) which lets you replace default search page syntax “?s” in wordpress search page with the word you choose.It can be anything(results,downloads,page,topic…etc)
<h3>Arbitrary section 1</h3>

Custom Search URL

Plugin lets you replace default search page syntax "?s" in wordpress search page with the word you choose.

Stoxello SEO Toolkit vs Custom Search URL