Dune Analytics
Dune Analytics is a powerful tool for blockchain research. Dune gives you all the tools to query, extract, and visualize vast amounts of data from the blockchain. Dune is unlocking the power of public blockchain data by making it accessible to everyone.
Dune Analytics allows you to freely query blockchains for particular data and presents it into human-readable tables which can be made into dashboards and shared with the community.

It currently supports queries to the Ethereum, Polygon, Binance Smart Chain, Optimism and Gnosis Chain blockchains.