Just RenderDoc really. PIX is DirectX only, and everything else is vendor specific.
I don't really know why you wouldn't just use your vendor's tooling though. The only thing I use RenderDoc for is I find debugging with it a bit easier than NSight when I need to find a problem, but for anything performance related I use NSight (and would use PIX as well if Nvidia didn't gimp it).
Oh also Intel's IGA I've found to be very buggy as well, so I avoid that.
Tools may be vendor specific but they're still portable. I use Intel GPA on my AMD card with no issues, I just don't get the extra counters and features Intel GPUs might get.
AMD has some tools for debugging performance related issues called Radeon GPU Profiler/Analyzer and gfxreconstruct (mainly just a replay tool, but can help when comparing across cards), but for debugging shaders running incorrectly on our hardware we use and support both render doc and Microsoft PIX.
I found Microsoft Pix, but it's not very useful for Vulkan except showing some performance counters.
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