I saw a very interesting post today in the CWops group.  They referenced a blog that can be found at this link:  https://cqww.com/blog/logging-software-used-in-cq-ww-ssb-2019/

The bottom line is that N1MM is by far the #1 choice with 49% of all November Sweepstake logs created using that program.  N3FJP was #2 with 7%.  Ham Radio Deluxe, which used to “own” the logging software market is only 0.1% (4 logs) and DXKeeper (not really used for contest logging) had 11 logs for 0.1% as well.

Granted this is for contesting, which is specialized for sure.  I’m sure that N3FJP will rank near the top for general purpose logging, and am also sure that DXLabs/DXKeeper will also be quite popular.