Haramis form on all time frames but this example is from the1h GBP/USD chart.
I use the low of the Mother bar (or high for long) for the first target & as long as the Baby bar is small enough there is good risk to reward, if there is not at least 2:1 to the first target then it is not usually actionable in my opinion but I will use discretion & trade according to the money flow, support & resistance etc. at the time.
The first set up on the 1h chart is close to resistance so stop either a few pips above high of formation or above res & both stop locations offer 3:1 rr to first target or 5:1 down to 38fib & rising support.
The 2nd set up is same the again with formation at res, so stop above the wick & offers 2:1 rr to target 1. That positon hit first target but failed to reach rising support and would have been closed at the next Harami formation.
That 3rd set up (Harami Cross) is at 21ma, so stop below lowest wick & target top of Mother candle. Again a nice rr of 3:1 to the first target & price went back up to res zone for possible 6:1 rr.