How do I select the right business intelligence tool?

BI tool selection depends on: data source complexity (how many sources, how big?), technical skill of users, refresh frequency needs, and budget. Looker Studio (formerly Data Studio) is free and excellent for marketing dashboards. Metabase is open-source and great for non-technical teams querying a single database. Tableau and Power BI are enterprise-grade for complex multi-source analytics. Avoid over-engineering — most SMBs get sufficient value from Metabase or Looker Studio.