List of Essential Plugins:

• WP tasks After Install
• Antispam bee
• Easy Updates Manager
• Gravity Forms
• WordFence
• WP File Monitor
• WP Maintenance Mode
• TinyMCE Advanced
• WPMU DEV Dashboard
• Smush Pro
• Yoast SEO
• EU Cookie Law
• Plugin Notes Plus

Optional Plugins:

• Better click to Tweet