If it is just for top layer "lough style" fishing teams on shortish lines and dibbling then something around 10' 6" - 11' 3" in a #6/7 that is not a poker will do you .
I use an 11' #7 Hardy Demon , 3/4 flies , 20 foot leader and it does the job nicely , roll cast well , picks up the line well and can easy chuck a longer line out if needs be
If you can stretch to it then as said above a Marksman Drifter 11' in #6 is a very nice tool and one I am shortly moving over to, keeping the demon as a spare .......