I’ve only taken People Management one and perhaps because at the time I was an HR Advisor/ Generalist and enroute to HRBP.

I think in your situation, you may wish to evaluate which of it has modules/ area of focus that interests you. There is no harm and even may be more valuable for you to receive exposure outside of L&D if it is already the core of your role. I always think having a HR specialism eg L&D, C&B, you should still gain a holistic view of the full spectrum of HR.

Hope this helps

Kitty