Sure, Tableau is awesome.

But have you considered these open source alternatives?

They are free, self-hostable and community-driven.

Check by yourself: Apache Superset  Superset , Metabase  Metabase .

  1. So is Apache Superset Superset

    Data visualization and exploration

    ★ 63k dataviz data bi License: Apache-2.0

    Superset is a modern data exploration and data visualization platform. Superset can replace or augment proprietary business intelligence tools for many teams. Superset integrates well with a variety of data sources.

  2. So is Metabase Metabase

    Business Intelligence for everyone

    ★ 39.2k bi analytics License: AGPL

    Metabase is the easy, open-source way for everyone in your company to ask questions and learn from data.

    Metabase Product Screenshot