I believe that one of the most important thing these days is still practical value and real value every solution brings. I am pretty impressed with blockchain implementation cases in real life. A great example here is GET protocol that helps entire ticketing industry. GET Protocol offers a blockchain-based smart ticketing solution that can be used by anybody who needs to issue admission tickets in an honest and transparent way, thereby seeking to eliminate ticket fraud and exorbitant prices. There are already impressing results - partnership with Klaitn (very popular service-centric blockchain platform, Google them), Oerrock festival and much more