So, I've read LR's RAW converter isn't great for the RX100 M5. The free Sony converter is very basic. I have a Nikon D500 also, for which I use Capture NX-D, but would like to unify my workflow. Suggestions?
You might just have opened up a furious war…
Every RAW shooter has their favourite editor, which they're convinced is the best. As far as I'm concerned, it's DxO Optics Pro Elite edition, which has probably the best lens geometry correction and NR tools. I like its workflow, too, as well as its feature set. But you'll undoubtedly get other responses fiercely arguing that several other converters are better/cheaper/easier/more comprehensive.
Before anyone mentions them, DxO does have a couple of snags: it's not a full photo editor (no paint tools or selective editing)