Leverage a move to Europe through MBA

Some context: I live in a developing country and would like to move to a first-world country, so I thought targeting a top MBA would be the best way to achieve this goal.

I've heard that it's hard to get jobs in the US even from an M7 (ROI would be non-existent if I can't get a US job), so I figured I'd put my sights on Europe instead.

Would a program like LBS or IESE etc give me a strong enough network to manage to move to Europe? What about Oxford and Cambridge (as I understand these are still 2nd tier, but at least the school names are renowned internationally)?

Any experience with leveraging a move through an MBA?