xfx has a nice feature of being able to just hotswap the fans. And both fans don't spin in one slot. Aliexpress has old asus dual coolers for 30$, which uses the same reference board as the xfx cards.
Does anyone have any experience buying used gpu coolers off of aliexpress etc.? Have a dead fan, and hitting 90c where amd starts to pull clocks on an rx470.