What is Blue Team?
Blue Team is the term that describes defensive security.
This is a proactive approach that focuses on the prevention, detection, and response to attacks upon an organization.
Some Blue Team roles include:
- Security Analyst
- Incident Responder
- Threat Intelligence Analyst
Useful Links
GIAC offers the highest standard of Cyber Security Certifications in the world. They are definitely more expensive, but if they are your target, I would recommend the training offered by SANS.
Professor Messer is an excellent resource for learning Information Technology. He specializes on CompTIA certifications. Nearly all of his content is available for free on Youtube.
Other affordable options for getting your feet wet would be HackTheBox and/or TryHackMe.