I would use AQ power cord but you can try others and choose what sounds best. For that power conditioner, lowest I would start with is the latest AQ Hurricane (storm series).
Power cable for AQ Niagara 5000
I just purchased an Audioquest Niagara 5000 power conditioner and am looking for recommendations for a 20amp power cord to couple it with. I've never been a fan of any AQ cables, past or present, but the consensus, whether it's just good marketing or not, is to use an AQ power cable. Does anyone have thoughts on using AQ vs another? My cables of choice have always been Shunyata and Nordost.