Sure, DBT (Data Build Tool) has been around for a while. It's a way to manage SQL (and also Python) data pipelines - the "T" in ELT. Home page for DBT Core is here https://docs.getdbt.com/ (there is also a hosted DBT cloud premium offering). There are some good books on Data Engineering with DBT - I particularly liked "Data Engineering with dbt: A practical guide to building a cloud-based, pragmatic, and dependable data platform with SQL" by Roberto Zagni.