As evidenced in the title, I would like to know which online MBAs are the most reputable/recognised from MBB or Big 4 consulting firms.

I expect to work and extend my network in the next years in Europe, after a first experience abroad in Brazil.

Regards.

An online MBA won't help you get connected into MBB firms. Take a look at: How to use LinkedIn to find the best school www.find-mba.com/board/33571

I would think that most Online MBA grads who are working in MBB or in one of the Big 4 firms have previous experience in one of these firms. These firms' recruiting funnels go through full-time MBA programs, mainly at the top business schools.