What do you recommend against the London?
In a recent game, my opponent played 1.d4 Nf6 2.Bf4 g6 3.Nc3 and as Black I got a bad position out of the opening. What do you recommend here?
I play the King's Indian a lot and when I face the Accelerated London move order my prefered lines are as follows:
1.d4 Nf6 2.Bf4 g6 [Also interesting is 2...c5 3.d5 d6 4.Nc3 e5! Exploiting the Bishop placement on f4 and leading to a very reliable game for Black.] 3.Nc3 d5 4.e3 Bg7 5.h4!? [The most challenging option and the one recommended most by authors] 0-0 [Also possible is 5...h5!? 6.Nf3 0-0 7.Be2 c5 with good counterplay] 6.h5 c5! 7.hxg6 hxg6 Black is fine in the coming complications.
The London system has become incredibly popular at all levels and many acceptable ways have been found for Black to meet it, however, for King's Indian, Benko and Benoni fans the above lines seem the most appealing in my humble opinion.
https://exeterchessclub.org.uk/content/london-system You can see this post all trending lines are covered here.
The variation you are talking about is tricky. I will recommend setup with d5 and c5 with a kingside fianchetto. although it is a double edge, black gets good play in this line. As I play London most of the times, I think it is a good line for black. Note:- I suggest this setup because you prefer KID setup.