Congrats on your big chop!! I think knots are definitely a part of being natural, some ppl get them more than others but coily hair is inevitably going to coil around itself and knot up...especially in "out" styles like puffs, fros etc. I like to think my coils love each other so much they knot up around each other to stay together forever...lol but that's just to keep me patient at times when what I really want is to rip the stupid knotting strands apart.
The biggest way that I minimize knots is by wearing protective styles, twists, braids, flat twists etc...but sometimes I just want a pretty fro or puff so I'm experimenting with different techniques. One way is braiding or twisting your hair up at night if it is long enough to do this, that way it's not tangling while you're sleeping. Another is simply combing through and detangling well with every wash and using a thick oil like castor oil on the ends. I've heard someone on here post that using BBD stretch stopped their hair from knotting, so if you have the money that might be worth a try. Another thing, is just using a good detangler to comb out regularly and lots of ppl swear by kiddie detanglers, commercial or natural ones (Oyin's Gregs Juice and Qhemet Biologics Olive detangler come to mind). I hope others chime in with advice as well!
Good luck, and happy hair growing!!