Hope Kucoin will also support Harmony staking. I got my ONE there. I've just checked Binance
https://www.binance.com/en/staking already supports ONE staking. Should move them there )
Already penance exchange is supporting the Harmoney Protocol staking, as of now, I don't see any update about the Kucoin staking. So it is better to move your ONE coin to Binance exchange because they are promptly sharing the staking rewards on a monthly basis.
Binance staking isn't really worth it, It pays so less. I'm just waiting for main net staking, ONE will be doing pretty good in 2020. Development is strong.