WP Rocket - WP Rocket offers a caching plugin for Wordpress.
SafeBase - SafeBase is the interactive security portal to share your security posture, automate access to sensitive compliance information, and subscribe to vendor security program updates.
Yoast - Yoast offers plugins to improve SEO and optimize web sites and blogs.
The Security Checklist - The Practical Security Checklist for Web Developers
Wordfence - Comprehensive security plugin for WordPress.
WordPress Security Scanner - Check if your WordPress site has known vulnerabilities