I have purchased a rack, same as a few others on here, from
https://www.rameder.eu/ :-
Item No: ZB7389 x 1 - Locking set
Item No: 118791 x 1 - Roof rack, comes with feet, bars etc
Above came to 94,45 Euro plus shipping of 20,23 Euro.
I paid with Paypal and that came to ÂŁ107.12 in total.
All arrived to me at work within 3-4 days.
I guesstimated the position for the feet and successfully used it on the weekend to collect my Canoe.
I would definitely recommend it to any Ioniq owners.
Obviously its at your own risk, but I was more than happy with the strong, tight fit on mine.
This model fits a range of cars, form different manufacturers.
I wonder if Thule do any universal racks...