The subreddit for the series has been up and running for a few months now if you care to be a part of it!: https://www.reddit.com/r/MyBrotherIsDoneFor/
We have an always active discord linked at the top of it with several channels and dozens of emotes! These channels include gaming, role playing, and a chat specifically for trans people! So many friendly faces and lots of discussions and friends <333
We will be having challenges and more soon on the subreddit! This may even include art contests! Either way, there is no better place to gather for the series than the subreddit here
We are very trans friendly, and as such, attacks against the topic (whether irl or against the manga) will result in an instant ban. Just be aware of that! You can discuss your thoughts on Mahiro and how you see her, but no blatant transphobic tendencies will be allowed. Have fun, and we all hope to see you there! <333