Hello, I am learning the Dutch but I read that it needs quite a bit of study because of how it can transpose into many different lines. Does anyone know any free sources in which I can study from?
Dutch Defence

Hello, I am learning the Dutch but I read that it needs quite a bit of study because of how it can transpose into many different lines. Does anyone know any free sources in which I can study from?
I am most into the Leningrad Dutch or The Classical Dutch but I am looking for a more offensive variation, I am not to into gambits because of the fact that they most likely will decline it. Do you guys have any ideas?

You say that you are into the Leningrad, but ask if there are any aggressive variations? If you're going to play the Dutch, the Leningrad is the most aggressive way to go. I prefer the Classical Dutch, because I like to answer 1. d4 with 1...e6. That avoids many anti-Dutch sidelines, but it does require you to be prepared to play the French if White continues with 2. e4. And it pretty much rules out the Leningrad, where the e pawn normally stays home until you can play ...e5.

I've always been taught that the Leningrad is almost solid enough to be played at the top level, and the stonewall is a little sketchy.
However, the stonewall is really fun at the amateur level, and I'm sure many expert players get away with it.
My advice with the Dutch is don't play blitz. The Dutch is really sharp, and playing longer games with the Dutch will really teach about complex positions, which is always helpful.
Hello, I am learning the Dutch but I read that it needs quite a bit of study because of how it can transpose into many different lines. Does anyone know any free sources in which I can study from?