The number of Lemmy instances are growing and the list on join-lemmy is getting bigger and bigger. There are too many instances on the page and it is hard for new user to find which instance is suitable for them.
In my opinion, the instances should be categorized on the basis of the region, topic, etc. Something also should be done to promote smaller instances and reduce the traffic on the main instance and lemmy.world instance.
Mastodon categorizes the instances and gives a brief overview of each instance.
Would need some kind of server setting to specify categorisation. Maybe open a GitHub issue for a server setting to do this, and then it could be displayed in the join-lemmy site