I have the 22 Terminator, 22 Grendel & 22-243 AI reamers & access to 22-243.
I had been considering getting the 22 Creedmoor reamer, I read about it years ago, it would go nicely with my 6 & 6.5 CM reamers.
The 22 Grendel goes extremely well & is exceptionally accurate, but feeding the small case can be an issue with conventional platforms, its incredible in the AR15.
The most under rated & easiest is the 22 Terminator, perfect in a Tikka 223 donor rifle.
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