Basic HTML and CSS skills are enough to create your own Gutenberg Blocks with Lazy Blocks.
Built with HTML5, performance and accessibility in mind, WS Form Lite is definitely worth a closer look.
With WP Extended Search you can configure the native WordPress search to your hearts content.
Easily create copies of your post and pages in different languages, and Polylang will display the content in the preferred language.
Perform quick changes to .htaccess file, directly from the WordPress dashboard.
Redirection is a mature and robust redirection plugin, for managing 301 redirections and logging 404 errors.