The only coins I am familiar with the things OP have said Are just NANO and Travelflex the rest I really don't know about And I don't really have any idea with DAG currency, But in my opinion if it is backed up by bitcoin then it is a good project for me if it is decentralized but if the project is centralized and are one of the Stablecoins that are backed by Fiat money then I will be having doubts with its movement and if it's going to stay alive in the crypto market industry.