Filter Athena Results and Persist to Various Formats?

I'm looking for an open-source solution that can help us make our python API more accessible. For simplicity's sake, the data is accessed using Athena and has three string fields A, B, C. Every customer wants to have a different data projection: some want just column A, some want B&C, and so on. The format also differs from customer to customer: Some want that column A as JSON, and others want B&C as CSV.

Is there an open-source solution that can help my customers and me filter the desired data and persist it?