This is the list of Black Belt courses that give you points:
https://www.cisco.com/c/dam/en_us/partners/downloads/cisco-partner-program/eligible-black-belt-train...
Doing any other Black Belt course is a waste of time (unless you just like learning).
Select courses in the areas where you want to earn points. Aim to do about 20 courses each. You need a high percentage of your staff to have done this to maximise it. If only 10% of your staff do it, you won't get many points.
It takes about 2 months after finishing the courses for the full benefit to be reflected in your scores. There are going to be many partners screwed who leave it to the last month ...