I am going through the Aagaard book on holiday and find it good, well written and with different suggestions.
Best French Defence Books

"Winning with the French" by Uhlmann is useful. It is not a book explaining theoretical ideas or listing variations. It is 60 games illustrating the kinds of position you can get into, and how to play them.

I have and found it very good, with some great attacking ideas. Some of the suggestions are rather lunatic but I really liked the approach of castling long in the advance variation and it has worked with some success during club play.

For me, Mastering the French by Neil MacDonald is far and away the best book I've read on the french. It isn't terribly new but deals with pawn structures, typical plans and ideas
I also like McDonald's Mastering the French best among the all-variations of the French books. He also has a book completely devoted to the Winawer Variation and another on the Classical and Rubinstein Variations. Someone mentioned Watson's Play the French, 3rd Ed, but neither the 3rd Ed. nor the 4th Ed. cover the Rubinstein Variation at all. I does cover the Winawer in detail.

I was reading this old thread for some new books on the French, and couldn't stop from myself from saying this, but if you are going to criticize something, you really should say why you did so.

I skimmed this thread quickly and did not spot this book mentioned (though perhaps it was), so in case it wasn't ---- in 2014 a book titled The French Defense The Solid Rubinstein Variation by Hannes Langrock was published. It covers the Rubinstein in detail and also covers other white lines against the French Defense that deny black from playing the Rubinstein, such as the Advanced, King's Indian Attack, etc. In 2018 the book was re-published in an expanded edition.
I am going through the Aagaard book on holiday and find it good, well written and with different suggestions.