Dr. BPK,
After completing your 6-unit beta course with BLC, what do you recommend for further education? Do you have particular books/materials/etc. that we should be equipped for at that point?
It is not easy to develop fluency in Koine Greek as a student or a teacher, but it is fun! One thing you can do, however, to make it easier, is to connect with other students and teachers doing the same. Feel free to make connections and discuss all matters of Koine Greek as a living language here!
I had the same question, and after doing some research, it seems to me that Omilein is the best option: https://www.omilein.org/courses
Omilein's creator has taught with the BLC and is friends with Dr. Kantor: https://www.youtube.com/watch?v=CeHEWcV6ewU