[Question] How can one train philosophical skill?

I’m not sure whether this is better-framed as a babble question or a “serious” question, so, treat it as you will.

If you could sit down and train in philosophy the way you train in arts or sports or maths, how would you do it? What’s the Deliberate Practice of philosophy look like? What would a philosophy coach do? Would there be philosophy competitions? What could they look like?

Or, if you think philosophy as it is currently practiced is useless/​suboptimal, what might you put in its place?