The new 2019 version of the Arctis 7 has slightly deeper ear pads than the original model…but if the 533 is hitting your ears, I’m not sure the Arctis would be much better unfortunately. The depth is roughly comparable overall, and the openings are a little bit smaller in diameter.
If you have any Best Buy stores in your part of the world, they usually have several gaming headsets out you could try on including the Arctis models. Otherwise, you’re stuck buying things from a retailer like Amazon that’ll let you return them.
Other wireless headsets with really big ear cups include the Astro A20 and the Corsair Void Pro. I’d consider looking at those and see if they maybe fit your needs!