Spring Security Courses

Desarrollo Web con Spring Boot - De Cero a Ninja
Udemy

Spring Framework Certification Training
Edureka

Spring Security Basics
YouTube

Spring Framework: Using Spring Security OAuth2 Login
Pluralsight

Spring Framework: Securing Spring Applications against Common Security Threats
Pluralsight

Securing Spring Data REST APIs
Pluralsight

Spring Security: Authentication / Authorization - Building Effective Layers of Defense
Pluralsight

Architecting Web Applications with Spring
Pluralsight

Microservices Practical Examples
YouTube

REST API Automation With REST Assured - A Complete Guide
Udemy