Apparently not many know where to find such places so I thought it may be convenient to write a post about it here. To get straight to the point, the fastest way to keep up and receive news and information about Gochiusa is the official twitter account:
For those who can't read Japanese there are plenty of alternatives such as:
The subreddit posts about the newest translated chapters as well as important tweets from the official twitter account, translated in English of course, most of the time there are just anime or manga caps about Gochiusa though. This subreddit also has a discord server that focuses on Gochiusa conversations, the invite link: https://discord.gg/0kPq0lFTAtJTIXym
The Tumblr account http://dokidokivisual.tumblr.com/ basically offers anyone the most important news all around Kirara series', specifically focused on Gochiusa of course and currently on Comic Girls as well. Sometimes if there aren't any relevant news to be written, they also share Gochiusa fanart.
Also, a little personal recommendation from me to all GochiUsa fans, if you haven't read the manga yet please give it a shot since, in my opinion, it has a beautiful art style just really pleasing to look at and it also contains several chapters and scenes that haven't been shown in the anime.