Alternatives

Alternative	What it gives you	Where it stops
Internal cookiecutter	A scaffold that matches house style	Runs once, then drifts. No check, no list, no upgrade path
Open Data Product Specification, Data Contract Specification	A shared vocabulary	Large schemas with no workflow. Hard to start with
datacontract-cli	Contract validation	No scaffolding, no ownership model, nothing that generates the orchestrator or warehouse files
dbt mesh features	Cross-project refs and model contracts	Tied to dbt, and to its paid platform for the multi-project part
dbt-project-evaluator, dbt-checkpoint	Linting of names and structure	dbt only, and no notion of a product or an owner
Data Product Portal (Dataminded)	Web marketplace with access requests and governance	A running service with a database, built for scale. Complementary: datapatchbay could feed it

The real competitor is the first row. Most teams build that cookiecutter themselves and stop there.