[Betamax_man]

I guess the most effective way to reduce road noise will be to wait until you replace the stock Michelin Energy Saver A/S, however, its hard for a customer to know how quiet any particular tire is before putting them on. Unless other Ioniq owners have already swapped tires and have experience to which reduced noise more...

In Europe, all tyres need to be tested for performance and have a label attached. There are online retailers that display this information per tyre on the website. Have a look here: https://www.mytyres.co.uk it might give you a clue as to the quietest tyres available.