ISO of Copies ofDatabases for Acquisition

I'm buying up copies of SQL databases for a data project. I'm just looking to buy copies, not the actual database asset IP — and non-exclusive rights so you can sell to others if you want, just don't publish the database on public internet.

Looking for:

Real databases with real-world usage
NO synthetic/generated data
Multiple related tables, detailed schema documentation, fairly complex
Any domain
Requirements:

Must have the legal right to share it without restrictions
No PII, or point us to what needs anonymizing
Must be compatible with PostgreSQL, Snowflake, or Databricks
Paying up to $500 per accepted database, depending on complexity and quality

DM me with:

Description (what is it, what domain, roughly how many tables)
How you have access/rights to it