Get direction of moving sphere?

Been at this for a while now, google-fu is letting me down.

I have a sphere (player) whose rigidbody is being moved by adding force, causing it to rotate (like pushing a marble). The player will be spawning platforms in a 3D space to climb higher and higher, so the platform needs to be spawned above and offset the position of the sphere.

Is there a simple way to get the "forward" direction of a rigidbody whose rotation and velocity are in constant change? I would like the direction the player is currently moving to spawn the platform at a set distance from the players current position, in the player's current direction, with a static Y value. I don't intent for the player to have an "aim" control outside of the movement control so using the right analog or mouse w/radius clamp would be out of the question.

For clarification, I have all aspects of this goal working, I just can't get a consistent and working position.