I check Google maps for reviews on local businesses, Amazon reviews for products, but for fediverse instances, AFAIK, there are no reviews
One thing, in the threadiverse it’s generally called a community rather than a “sublemmy”, the urls use /c/.
Though unfortunately I’m not aware of a specific community to request communities, usually the answer around here is “be the change you want to see”, if you want one, try making/running one, maybe it’ll catch on 🤷.
One thing though is its going to be difficult to host something like that on any instance and it remain neutral lol.
A_norny_mousse@piefed.zip 3 minutes ago
Can we call it a comm(unity) please? Not everybody in the fediverse uses the Lemmy software.