With a correction for historic volatility, a narrow range strategy performs pretty well on the daily ETH chart. Backtesting results from 2018 until now here.
Skyital -- Digital Asset Managment @pentational
medium.com/coinmonks/skyital-crypto-trading-strategy-d831d1af77f7
medium.com/coinmonks/skyital-crypto-trading-strategy-d831d1af77f7