What are the most successful ethereum/block chain use cases

I am trying to find successful blockchain and smart contract use cases that are not insular to crypto itself.

I find a lot of websites touting the potential of it for supply chain tracking, charity watch, gambling, etc. But many of the "success" cases no longer exist or have only succeeded in getting funding – not profit.

Can anybody point to practical successes outside of the services for crypto/blockchain community ( like coinbase, opensea, etc ).

Thank you