You could look at Warwick and Manchester Business Schools. Both have strong reputations in your target areas: WBS perhaps has a slight edge in OB/org development faculty; MBS has a slight edge in strategy. However, both will give you a good all-round MBA qualification and experience.WBS may be better value for money for you as it sounds like you're not looking for a dramatic change in career direction as it's a shorter (12 month), slightly less expensive, course. However, the 18-month MBS course will give you more opportunity to take internships, network, and develop yourself if you have concerns about being able to get a foothold in the EU/US job market post-MBA. Students with ME experience are relatively rare and MBS has a particularly international cohort, so you may find a good fit there (people who are interested in your experience, plus people who have experience in your target geographies).