What do you use to learn pitch accent?

I personally use Dogen’s patreon videos, I’ll come back and edit with a link to his first few on YouTube.
That in combination with the script that adds pitch info to WaniKani, and as Leebo said just listening carefully to people I’m around everyday.

Edit (links):
YouTube (first phonetics video)-

They eventually delve into a lot more detail. I believe through episode 4 is free on YouTube.

Pitch Accent Script-