I would recommend to look at ClickHouse[0] which is Apache-License and is completely open-source. You can self-host it and it is one of the fastest growing OLAP database. It has good integrations with BI tools and it can be used for wide varieties of use cases. It is widely adopted[1]. I would recommend you to give it a try and validate it for your use-case.
I work for ClickHouse and available for any queries or help you need.
I work for ClickHouse and available for any queries or help you need.
[0]: https://clickhouse.com/ [1]: https://clickhouse.com/docs/en/about-us/adopters