For the WTB course on Go, it might make sense to restart the Go colearning. Natalie is also an organizer at the Go meetup and suggested that I talk about the colearning there to find more coaches/organizers (since I had to cancel it often when traveling).
Another format of WTB is “fireside chats”. Those are similar to the career Q&A event we had, which I believe, garnered quite some interest. So maybe OTS can contribute ideas/people/space/etc to future fireside chats.
Natalie expressed interest to run an intro to programming with python workshop, to offer the WTB community an alternative to the big commitment of a three month course.
She also mentioned the upcoming codemotion conference and their community stage. Gorgia already talked to them and started a thread: Codemotion October 2017
Finally, in the first week of November the Google Developer Group DevFest takes places. I think attendance is free and we could run a regular length workshop (~5h) there.