I tried neodb.social, but everything seems to be in an east asian language (mandarin)?

Found this today: https://neodb.net/servers/

Try one of these:

https://reviewdb.app/

https://eggplant.place/

From what I recall, 99% of the current users are Mandarin speaking. But the developer speaks English.

It has Chinese devs and the majority of users are Chinese. Hopefully, now people are discovering this service, we'll see more instances in other languages.