Well as you say there are many to chose from.
If you want the same quality as the Pioneer setup you had then it is not as many.
If you want to come of cheap there is the Numark Mixtrack Pro
(all other low budget is not a good choice from what I’ve heard)
The Mixtrack pro is plastic has not as good buttons/knobs, short pitch, no balanced output, no mic in……
It is a very popular begginers controller….
Then there is the Pro DJ controllers.
It is important to chose what software you want to use…..
Denon MC6000 (I have this and do think it is the best) – Any SW but ITCH (Traktor VDJ)
Numark NS6 – ITCH
NI S4 – Traktor
Pioneer there is one for Traktor and one ITCH controller
Pio also soon comes with a new one that looks to be cheaper but I do not know if it’s ITCH or Traktor….
If you are used to the CDJ from Pio you will properbly like the Pio controllers
but you come of cheaper with the Denon.
I suggest that you go to a store and try them for yourself!