2. Create cron job for automated backups to AmazonS3, Dropbox etc
/usr/local/bin/php /home/thehostingusername/public_html/cli/akeeba-backup.php --profile=1
2. Akeeba Admin Tools
3. JSitemap for Site Maps
4. eXtplorer for file management
5. EasyProfile to extend the Joomla registration form and to allow users to edit their won profile and also delete it if require. This is a paid component if you want the social media login integration. It is money well spent ! https://www.easy-profile.com/
7. Create Webmaster Tools Account and verify. Add the html filename only to the Exceptions > Allow direct access to these files, then create the new htaccess file. Verify again.
8. Submit Sitemap
9. Unite Slider by unitecms for a very functional slider including text and video overlay.