Don't go to complicated, KID is a good line to learn, and rarely ever looked at because it is almost as if people expect you to know how to play it lol
also the Dutch is good, I tend to play f5 immidiately, but some like the e6 move order, um have no clue about the others though
I'm a beginner level player and I've got a short list of responses to 1.d4 that I'm considering.
Nimzo-Indian
Dutch
Budapest
QGD: Tarrasch
Your feedback is appreciated!