I currently have Thule but if I am completely honest, I preferred the Yakima Whispbars I had on my Q7. Sometimes, depending on the wind direction crossing the car when at speed there is a little noise. It's a low rush, not a whine or whistle and you don't notice it with some music on. I've lived with it for 5 years so obviously not that bad. I never had that with the whispbars.
You can choose from here Roofbox linky. If they had the whispbars available when I bought the car or indeed if they were available now I would plump for them. No affiliation with the roofbox guys, I just like them, their service and responsiveness is great, the folks there told me this week that it'd be 8+ weeks until they were in stock again. 😞
The set up I have is;
1 x Thule (252) Rapid System Fixpoint XT low feet (4) no. 753 (Lexus NX (2014 onwards) )
1 x Thule Rapid Railing adapter kit no. 4060 (Lexus NX (2014 onwards) )
1 x Thule (88) Rapid System 118cm WingBars (2), black, no. 961B (Lexus NX (2014 onwards) )
These are through bars rather than flush bars as although they don't look as sleek you get more real estate (roof box and a couple of bikes if you watch your roof loading weight)
Hope this helps