I don't know if anyone has done this yet so i'm gonna give it a shot.
There is an app called Amino for ios and android. Amino has a ton of communities for various interests like technology, anime, video games, চলচ্চিত্র and tv etc. In these communities আপনি can make blogs, polls, and পছন্দ for all আপনি পছন্দ things regarding that genre অথবা show. One of the particular communities is called Buffyverse where আপনি can discuss all things Buffy and Angel. I know that's what everyone already does here but this sis a mobile community that's a bit আরো active.
So I just wanted to put this out there in case anyone was interested. Just download Amino and look for Buffyverse.