Long time I am investing in icos and some of them I sell after ico and some of them I keep for long term. Now my favourite Ico is usechain and I think its worth to keep it for long term I suggest u to make your search about this coin for long term. Here u can find everything what u want > https://medium.com/@ricof9266/usechain-first-mirror-identity-blockchain-system-85f9057b61fd