logstash - logstash is a tool for managing events and logs.
Riemann - Container Monitoring
Gravwell - Gravwell is an all-you-can-ingest data fusion analytics platform that enables complete context and root cause analytics for security and business data.
Wazuh - Open Source Host and Endpoint Security
Splunk - Splunk's operational intelligence platform helps unearth intelligent insights from machine data.
Fortinet FortiAnalyzer - Fortinet FortiAnalyzer is a powerful product for Security Fabric Analytics and Automation.