AQ 3 barrels 3bet pot ?

Which worse hand which call on that turn should fold on the river?
And more important which hand worse than yours would call here?

Quiet interesting which limit do you play?

Ch-fold flop. It is a 'caller flop' not yours. It doesn't hit you so much as his range.
K on the turn gives you a chance in a weak spot so it is understandable you are attacking.
Some part of his range will fold turn and some on the river (i.e. 86,76, 98, 66,99) but huge variance and doubtful equity in this spot. Not good enough to play like that.

Is it though Robmaf
He's the OR calling a 14bb squeeze who won't be closing the action postflop and it's just 130bb effective, 93 with the BU I think low SCs+PPs should be under pressure and actually should be folding here pre?

Post just comes from that - AQo with a heart will actually be the sole combos we'd bluff here on turn+river

Sure, I see your point. I also assume 91bb is not 100% pro so CO WILL and should call wider as well as BU
On these board it is really wise to be very carefull. Depends on the stakes and dynamics and also opponent history action depends.
My main choice here is check with QQ+ when I play vs a very good player. Vs weak it should be bet for value on 3 streets.
With AQ...you are right it is tough and still I would lean toward check-folding without any reads.