I'd like to short an ATM straddle for the most premium, not the intrinsic. It is not always possible as the underlying could be at none of the strikes. I could babysit the underlying and wait till it arrives at the strike, but I'm wondering if there are any special order types than can help optimize it and be more efficient. A limit order is a bit contradictory here because it would favor the underlying moving away from strike, opposite to my goal.