VMware vRealize Log Insight is a log-aggregation and indexing product that provides near real-time search and rich analytics on your logs. Log insight can collect log data from an array of endpoints via the syslog protocol (RFC 5424).
To obtain a proper introduction to VMware vRealize Log Insight, you can watch a helpful YouTube video at https://www.youtube.com/watch?v=KSCXPW_pX-E.
Log Insight also has a construct called content packs. Content packs are predefined dashboards, log-extract fields, log queries, and alerting specifications for a specific product. There are a number of content packs available for more than just VMware products, and these can be found at https://marketplace.vmware.com/vsx/.
NSX also ...