Apologies for edit. Adding more details. My fiancée is in the final round for a position in the Benelux area. Since my current company does not have an office there, I am looking for a position in the same region. I have heard that MBB want applicants to have a valid reason for applying to an office. Does a spouse's impending / potential job offer count as a valid reason?
Nationality: non-EU advanced country (no need for a visa to visit most countries but need work visa), also intend to apply for a "Blue Card" upon receiving an offer
Market experience: 4 years in insurance at S&P 500 companies (2 years technical research in NYC, 2 years strategy consulting in HK/SG)
Education: Oxbridge (non-MBA master's), US undergrad at global top 30 (Math)
Languages: Native English speaker (I can read a menu in French and ask for directions but I don't think that counts as basic proficiency)
Personal connection: Fiancée's impending / potential offer in Benelux, don't actually know anyone working in relevant offices
Industries served in office(s): Financial services (based on LinkedIn search of consultant profiles and economic structure of country), mining (based on partner's profile, government (EU institutions must be all around the offices)