[@bleedingwords]
I love so many of your plots but these are the three that I liked the most.

Wizard x Client- I definitely can play a Harry Dresden esque wizard who just sees his magical gift as a job.

Witch/Wizard x Cop - Same as the one above but he would not exactly enjoy being dragged around by the nose to help the police. 

Unexpected Laird x Steward - I do love modern plots and this one sounds interesting. I am great at playing the hapless American in over his head.

I leave it up to you to decide which one you want to do since I cannot decide.