Exabeam is described as 'Threats are going unnoticed. SIEM technologies today aren’t capable of detecting subtle anomalies and tracking entire attack chains — missing threats and flooding you with false positives' and is a Cloud Computing service in the business & commerce category. There are more than 10 alternatives to Exabeam, not only websites but also apps for a variety of platforms, including Self-Hosted, Linux, Docker and Mac apps. The best Exabeam alternative is Qualys Cloud Platform. It's not free, so if you're looking for a free alternative, you could try Castle or tirreno. Other great sites and apps similar to Exabeam are Securonix, Fortscale, Palo Alto AutoFocus and FireEye Threat Analytics Platform.
Securonix is another leading UEBA product that competes directly against Exabeam and covers similar use cases by applying data science models.