I am definitely down, have some questions though.
Q1: similar to the comment above, What are the topics? And if it is free lance on topics, is there specific ones you were after first?
Q2: Classic or Retail or Either?
Q3: Personally I was hugely invested in classic twinking for PvP Brackets eg 19, 29 etc if that is a guide you'd be interested in?
Q4: A couple more ideas of guides to write; Class Builds, PvP Builds, PvP Strategizing, Premade Teams vs Non, Actual in-game time and game achievement relevance.