I would ask you to look at VITE.
It is a DAG based platform with Smart Contract capabilities. The team is very active on github.
They have already released a working wallet and are on pre-mainnet, with mainnet scheduled for launch in Q3 this year (so very soon!).
Their Dex, ViteX, is also launching this month. This would be the first dex on a DAG platform.
Vite has the potential to be a top-20 coin.
www.vite.org