I need some help with writing blog posts

I run a blog and online magazine on the topics of games-based learning (GBL), mainly in the adult, corporate learning space, and gamification. I need to produce 11 high quality and well researched articles every two months for the issue -based magazine, as well as a couple of reviews on books, games, courses or similar relevant to games-based learning professionals. Each magazine is loosely themed around a specific topic which is approached from the context of GBL and gamification. E.g. recent issues have been themed 'Economics' and 'Futurism'. Additionally I also need to produce around 2 - 3 articles per week to be published on an ongoing basis outside of the time-bound issues. While I will be writing many of these myself, I need some help becuase of the sheer volume of writing involved.

I am looking for writers who can regularly and consistently produce high-quality articles and reviews (written in UK English), including appropriate levels of requested keywords and images.