I have completed a number of certificates and at least the following are on my to-do list:

GCIH

Splunk Data Admin

OSCP

Blue team level 2

BTL2 is aimed at security professionals with at least 2-4 years experience in a practical role, but can be suitable for individuals with less experience provided they can commit to the intense training. Malware Analysis, Threat Hunting, Advanced SIEM, and Vulnerability Management. Also hashing, malicious process monitoring, system hunting, vulnerability scanning, and adversary C2 emulation

Splunk Core Certified Power User

Expanding basic Splunk skill set with greater understanding of searching and reporting, creating objects, tags, models and more.

Splunk Core Certified User

Entry-level certification exam to show you have a strong understanding of Splunk Enterprise and Splunk Cloud basics.

Offensive Pentesting

Primarily designed for students preparing for the Offensive Security Certified Professional certification exam. It contains rooms that step the students through the various exploitation steps as well as rooms that aim to simulate a black box penetration test. Most usefull topics were Buffer Overflow and Active Directory Exploitation .

Blue team level 1

BTL1 is designed to train technical defenders that are capable of defending networks and responding to cyber incidents.

Cyber Defence

Teaches how to analyse and defend against real-world cyber threats/attacks.