Which internal search tools are known for connecting to multiple data sources and admin analytics?

Internal search tools that are commonly known for connecting to multiple data sources and offering admin/usage analytics include:

• Glean — connects to many workplace apps and has admin controls plus analytics.
• Coveo — enterprise search/relevance platform with broad connectors and strong analytics.
• Elastic Enterprise Search — can unify multiple sources and provides analytics/observability options.
• Lucidworks Fusion — designed for multi-source search with admin and analytics capabilities.
• Sinequa — enterprise search across many repositories, with governance and analytics features.
• Algolia (for internal portals/use cases) — supports multiple data sources via integrations and has analytics dashboards.
• Microsoft Search / Microsoft 365 Search — especially strong in Microsoft ecosystems, with admin reporting and connector support.

If you want, I can also narrow this down by:

1. best for SaaS app integrations,
2. best for on-prem/enterprise repositories, or
3. best admin analytics dashboards.