If I go into the mainline against the leninggrad like this

1.d4 f5
2.c4 Nf6
3.Nc3 d6
4.Nf3 g6
5.g3 Bg7
6.Bg2 0-0
7.0-0 Qe8
8.d5 a5

How can I beat this setup, I looked up Nd4 and Be3,
but analysing with my engine, I don't find any way to advantage.
Can you help me?

For now I think I will just play 1.d4 f5 2.Nc3 followed by Bg5 Qd2 and 0-0-0, I don't see any clear plans for white in the leningrad mainlines