I stumbled across a strategy yesterday, but it is a TradingView strategy
it uses Heiken Ashi and Volume.

just put the indicator "Volume" on the chart and switch to Heiken Ashi.

if a volume bar is green and above a previous red bar then enter long
if a volume bar is red and above a previous green bar then enter short

it seems pretty powerful, but it has not been made for MT4 and i'm trying to make it in MT4

NB : in MT4 a Volume bar is red f it is lower than previous bar, that's not what we want, we want the same volume as in TV but I'm not sure of the code.

any help is welcome
thanks

examples of trades: (yes I know HA is not real price blah blah)
Jeff