Here are a few WordPress plugins that I like and suggest to my friends:

  • Wordfence Security
  • UpDraftPlus – Backup/Restore
  • Yoast SEO
  • Google Analytics by Yoast
  • Disable Comments

I also often use these:

  • W3 Total Cache – faster pages.
  • Advanced Access Manager – manage access control.
  • Advanced Image Styles
  • Bootstrap 3 Shortcodes
  • Customizer
  • Enhanced Text Widget
  • Jetpack by WordPress.com – security, performance, stats, tools, mobiletheme, 
  • Ketchup Shortcodes Pack
  • Perfect Quotes
  • Quick Page/Post Redirect Plugin
  • Relative URL
  • Simple Custom CSS
  • WP Image Borders
  • WP RagAdjust
  • YouTube