Hm, I’m not fond of too many non 2. d4 systems vs the French. If you’re willing to play into a semi-mainline, though, there’s some fun modern stuff in the Advance that MVL has been playing lately. Here’s a video on the topic:
https://m.youtube.com/watch?v=GJUvsLO0qJU
As white, i find it extremely difficult to play against the french defense and lose most of my games. The pressure against white central pawns is immense and it is hard to find good moves while black's position seems to play itself.
Is there anything white can play that avoids most of the typical play the french defense player expects and is prepared for after e4, e6, d4, d5?