WordPress-New

1. Best Practices | Plugin Developer Handbook | WordPress Developer Resources
2. CoolHappy - Portfolio | CodeCanyon
3. Hide My WP - Amazing Security Plugin for WordPress! by wpWave | CodeCanyon
4. 20 Simple Tricks to Secure Your WordPress Website in 2018
5. 6 of the Best WordPress White Label Plugins Compared

1. Duplicate Page and Post
2. Duplicate Post
3. MultiSite Clone Duplicator
4. Site Copier

1. Black Studio TinyMCE Widget
2. Custom Widget Area
3. Display Widgets
4. Popular Widget
5. Widget Logic
6. WPML Widget Filter

1. Post Types Order

1. Simple User Profile

1. Beginner's Guide to WordPress User Roles and Permissions
2. 13 Free User Management Plugins for WordPress
3. Capability Manager Enhanced — WordPress Plugins
4. Role Based Help Notes
5. User Switching
6. User Role Editor
7. 1 more

1. MultilingualPress
2. SG CachePress
3. super cache
4. W3 Total Cache
5. WP Smush

1. WpConduct
2. Wordfence Security
3. limit login-attempts
4. really simple captcha
5. Auditing, Malware Scanner and Security Hardening
6. How to Add Free SSL in WordPress with Let's Encrypt
7. 7 more

1. Better Search Replace: A New Plugin for Updating URLs and Text in WordPress Databases
2. How to Create Staging Environment for a WordPress Site
3. FTPloy Alternatives
4. Stop deploying websites the hard way!
5. Using Composer with WordPress
6. Importing a SQL file with your WordPress data
7. 4 more

Links to learn plugin development in wordpress

1. Writing a Plugin
2. bueltge/WordPress-Admin-Style
3. Creating Tables with Plugins
4. Plugin Codex
5. WordPress hooks database - action and filter hooks for wp plugin developers -- Adam Bro...
6. Plugin with Ajax and MySQL
7. 7 more

1. How to Create Custom Post Types in WordPress
2. Custom Post Type Maker
3. Reorder Posts

1. New bookmark

1. Advanced TinyMCE Configuration
2. TinyMCE Advanced
3. WP Editor

1. Google Analytics by Yoast
2. Google Analytics Dashboard for WP
3. Google Analyticator

1. All in One SEO Pack
2. WordPress SEO Tutorial • The Definitive Guide • Yoast
3. SEO
4. SEO Redirection Plugin
5. SEO Ultimate
6. Stallion WordPress SEO Plugin
7. 4 more

1. How to White Label Your WordPress Admin Dashboard
2. 10 Great Plugins to Hide All Sorts of WordPress Elements
3. Adminize

1. WP Mail SMTP
2. Display Widgets
3. Cloak Affiliate Links in WordPress
4. Compact Archives
5. Give your mobile website a boost with WPtouch Pro
6. TablePress
7. 14 more

1. Rewriting URLs in WordPress: Tips and Plugins

1. Admin Menu Editor
2. Advanced Custom Fields
3. Advanced Custom Fields: Flexible Content Field
4. Custom Login Page Customizer
5. Custom Post Type UI
6. Easy Google Fonts
7. 9 more

1. CMB2
2. Current Username on Navigation Label
3. CloudFlare
4. DuracellTomi's Google Tag Manager for WordPress
5. breadcrumb navxt
6. Date Translate
7. 3 more

Plugins and tools for wordpress backups and migrations

1. 3 Plugins For Easily Migrating A WordPress Site, Tried & Tested
2. Duplicator
3. How to Transfer WordPress - WordPress Migration Tutorial
4. Moving WordPress
5. Moving WordPress « WordPress Codex
6. UpdraftPlus Backup and Restoration
7. 11 more

1. Page Builder by SiteOrigin