BitBay (BAY) digital currency has been developed since 2014 with the eponymous market place being in operation from 2015. The coin is now listed on a few exchanges. You can purchase BitBay with fiat (hard) currency, such as USD or EUR, using a bank card.
Sebastian Schepis, the Syscoin founder, built Syscoin 1.0 as a blockchain-based marketplace for buying and selling goods. In its third edition in 2018 it became a fully developed blockchain platform. In 2019, Syscoin 4.0 enables any ERC20 to integrate with its Bitcoin-compliant system to accomplish ultra speed and security.