Hi, my team does this - there is a whole industry growing around productizing and democratizing datasets.
Some stuff to check out:
- AWS registry of open data: https://registry.opendata.aws/
- Datahub (metadata platform for presenting datasets with documentation): https://datahubproject.io/
- For a data exploration frontend, consider Datasette from HN regular SimonW: https://datasette.io/
- Nasdaq Data Link (formerly Quandl): https://data.nasdaq.com/search
- FinServ has had harmonized data for years, in the form of horizontally integrated data solutions from Bloomberg (B-PIPE), GS (Marquee), S&P, and LSEG.
- Data.gov: https://catalog.data.gov/dataset
- A number of data marketplaces have popped up to facilitate easy access to datasets (free and paid) through standardized data sharing methods, including Snowflake Marketplace, AWS Data Exchange, Google Cloud Marketplace, Databricks Marketplace, and Datarade.
You'll want to explore the space and get an idea of what the current State of the Art is, so that you can understand how you can best contribute.