Wazuh - Open Source Host and Endpoint Security
McAfee Network Security Platform - McAfee Network Security Platform guards all your network-connected devices from zero-day and other attacks, with a cost-effective network intrusion prevention system.
Beats - Beats is the platform for single-purpose data shippers that is installed as lightweight agents and send data to machines to Logstash or Elasticsearch.
Suricata - Suricata is a high performance Network IDS, IPS and Network Security Monitoring engine.
Syslog-ng - Syslog-ng decreases the quantity and improves the quality of data, thus enhancing the capacities of your SIEM solution.
snort - Snort is a free and open source network intrusion prevention system.