How to jump to/after Nth comma [duplicate]
You can combine the f motion with a [count], so for your example, 3f, would be the shortest way. (And if you have miscounted, you can correct with ; and ,.)
f,;;; or use easymotion and probable dupe of What is the most efficient way to reach a spot on sight on VIM?
What about searching the comma character?
/, and then input a number, say 3 and then type n or N to locate all commas in the doc?