Repetoire against d4

Hi I'm a 1900 FIDE strength player who's been playing chess just under 2 years now. I normally play either the nimzo or benoni against d4 but am not very happy with either. I would like an opening which has a lot of positional depth where as also has some tricky tactics. I do not really like gambits are accepting unneccessary inferiority. I like space.

gambits or accepting inferiority

do you play indian game? it's a nice one

If you want a surprise weapon, then go for Queen's Indian. If you want space, then go for the Slav or maybe the Dutch since the Indian openings usually hit back in the center after developing their pieces. Be aware that if white exchanges in the Slav, it can get very boring.

e4-e5.  d4-d5.  e5 or d5 against everything else, as appropriate.

I believe it was Larry Christiansen that said the Dutch Stonewall is the only opening where Black gets a space advantage.  It does have some tricky tactical possibilities, but it does not have great depth positionally.

Your best bet is probably the Semi-Slav.  The Meran set-ups are positional, the Botvinnik is beyond tactically complex, and the Moscow and Anti-Moscow are right there as well.  Black is often able to accept gambits / win an early pawn, and he goes tend to gain space on at least one side of the board, generally the Queenside.  Play is quite different from the Benoni or Nimzo, so you may need to adjust.

Thanks i considered most of these i just cat really decide. Semi- Slav i felt was a good choice but i am not a great calculator. QGD exchange really has troubled me a lot so i dont think i should play that even if perfectly ok for black.

Tarrasch Defense. 

I like the Nimzo and Queens Indian. Have you read a book on the Nimzo before giving it up?

I know how you feel, but look at GMs, they get some pretty boring positions out of the opening, then grind them out to a win anyway.

You want something strategically complex, with space, but you don't want to calculate... I think your approach is wrong honestly. Learn new things about the openings you already play, and work on being a better calculator. Learn how GMs play for a win in openings where they have less space, etc.

I recommend looking into the Dutch Defense (Stonewall if White plays g3+Bg2). It can lead to a lot of rich positions, and often tactics lurk just below the surface. It's not a gambit and it gives a lot of space. Although a lot of people consider it inferior to other 1. d4 defenses, I haven't encountered any lines that make me want to give it up.

By the way, if I hadn't enjoyed playing the Dutch when I first tried it out, I would have turned to the Nimzo as my next candidate.

@OP

I personally enjoy KID or Budapest gambit.

I've had trouble against 1.d4 for a very long time, after having tried some other stuff it seems this is what is working best for me (I was going to suggest Englund but you won't like it if I understand your comment)

what a braggart 1900 after two years you're so full of it you worked longer than that and you and everyone knows it you are not gifted like the world freaking champion my god save us the time

until you master ...1 g5 you are nothing

@Firstcomment   Say what you want mate. I don't claim to be talented just diligent. 1900 is not great at chess. Also i play g5 against the english occassionaly and have a 7/9 score with it against 1700+ rate opponents

Sicilian Defence

Maybe the Ragozin. It's too complicated for me but maybe you'll like it.

A serious approach is to research the current top 100 GMs and then pick the one whose style closes matches your style and who has a relatively narrow opening repertoire. Pattern your opening repertoire after his and learn its middlegame themes. Follow his future tournaments when he plays in them. 

To be honest, the Nimzo fits what you are looking for. The Nimzo is a very positional opening, but it can get get sharp at times. For example, in the 4.Qc2 line, after 4...d5 5.Bg5 h6 6.Bh4 is extremely sharp. The Nimzo is a very reliable opening with lots of theory and positional ideas, and learning it can really help your chess understanding. As for 3.Nf3, maybe you can give the Ragozin a try as it is somewhat similar to the Nimzo. If you want purely tactical games, then go for the KID.