Start wherever you want and go from there. It depends mostly on the bulb in your enlarger, i.e. its colour temperature. I've found that papers are extremely consistent pack-to-pack so once you've determined good settings for your enlarger and film, it will be the same across several packs of paper or vary by maybe a couple of points at most - less adjustment than you'll apply due to the lighting in the scene.

I think the classic starting point with a dichroic head is 0C30M30Y or similar. My bulb is probably a bit yellow (it's a super-cheap generic) so I'm often printing about 10C32M15Y but it depends on the film.

The paper is so stable that you can take filter settings from one brand of paper and use it with another and it will be so close to right that you may not care to even make that final adjustment.