There's now an official Discord and Reddit sub! If you'd like to discuss the game or share content, posting to one of these is now the best way to do so.
Discord: https://discord.gg/7bkz8j8
Reddit: https://www.reddit.com/r/hyperfight
The Online Beta is set to take place later this week, testing online lobby functionality. Further announcements and player matching for that will take place in the Discord, so be sure to join if you're interested!
-joh