A big contender is ITC. They're the IOTA of china. I'm going in big with this one. Currently listed on 3 exchanges and in the past few months has done 3x.

site-https://iotchain.io/
whitepaper: https://iotchain.io/pdf/web/ITCWHITEPAPER.pdf
https://coinmarketcap.com/currencies/iot-chain/