You seem a bit confused Mx314. A trainer is a trainer, it is a forgiving airplane that isn't too fast. That gives a student time to think. A 3D airplane is an aircraft capable of doing 3D aerobatics. Do you see the difference?
There is not a 3D capable trainer.
Might I suggest a trip to your local field, talk to an instructor there, see if he'll take you up on an introductory flight. Get his input on your first plane.