"I know there's so many people here. Just work/make your way through the crowd until you find her".
However, in other cases, such as "I'm working my way through college", work is used more literally, and doesn't merely mean "I'm making my way through college".
Here's some more examples:
"War and Peace is a long book, but I'm slowly working/making my way through it". "Working" sounds better here because it makes it sound more like an effort, but "making" is also correct.
If one is making any sort of effort, probably "working one's way through something" is the preferred choice.