That would be the Schön catalogs. They have 20th and 21st century books like Krause, but with much more detailed information on mints and privy marks for recent issues. I've been using Schön more as the recent Krause catalogs have gotten further behind and reduced in quality. (And even when both are good I learn by comparing the two catalogs and my coins.)

I've never seen the Directory of Circulating Coins so I can't give any information on which has better current information.

I also use on-line sites, Numista most commonly for general use. Numista has KM numbers for most coins, Schön for many, and additional collected information on variations. For an example see the comments section in
https://en.numista.com/catalogue/pieces1474.html .

I contribute a little to Numista; many people spend hours updating the information.

That would be Battenberg Gietle-Verlag. They publish a very good series of books covering time spans similar to the Standard Catalog of World Coins. Their 21st Century edition is no longer in print, I believe, however they do publish a nice edition covering the EU:
https://www.battenberg-gietl.de/sammeln/buch/euro-muenzkatalog .

My good friend Gerhard Schön is the author of this catalog and Gerhard also authors a 20th Century edition, a 19th Century edition and here is his latest 18th Century edition:
https://www.battenberg-gietl.de/sammeln/buch/deutscher-muenzkatalog-18-jahrhundert .

Production of these catalogs is less cyclical than the SCWC's, though I do know that Gerhard is completing a new edition of the EU catalog every year. Prior to establishing the EU catalog, the 21st Century catalog was done annually for just a few years before dropping out of sight about two years ago. It is a tremendous task to keep up with 21st Century coin production.