If you're looking for a bulk/combined package – here's where all of these are listed.

Learn Spring

Learn Spring 5 and Spring Boot 2 from no experience to actually building stuff.

UPDATE: The Price of all “Learn Spring” course packages will increase by $40 on December 10th.

REST With Spring

Build Your REST API with Spring 5 from HTTP fundamentals to API Mastery.

Learn Spring Security

THE unique Spring Security education if you’re working with Java today.

Learn Spring Data JPA

Master Spring Data JPA and boost your productivity with a modern persistence framework.