Graylog is #4 in Top 10 SIEM software

https://graylog.org/

Graylog

Graylog is a leading centralized log management solution for capturing, storing, and enabling real-time analysis of terabytes of machine data.

Positions in ratings

#4 in Top 10 SIEM software

#12 in Top 32 IT Monitoring software

Alternatives

The best alternatives to Graylog are: ElasticSearch, Splunk, Kibana, Logstash, Wazuh, Grafana, Prometheus, Security Onion

See also:
Top 10 SIEM software