Bytom shouldn't be out of the thoughts either, they have made some serious progress, should be close to releasing their fully functional version of their block chain:

https://medium.com/@Bytom_Official/bytom-released-0-1-3-version-creating-a-new-public-chain-model-along-with-bitcoin-and-ethereum-74ac8221c5c5

They also recently passed the Howey test.