AfterHours SMP is a Java Edition server for adults only and you have to apply to get in.
It is mostly vanilla survival but it uses a small set of Hermitcraft style datapacks. The point is to add quality of life stuff and fun little features without ruining the classic Minecraft feel.
The world is fresh and the vibe is calm and social. People build at their own pace and hang out and work together.
You send an application and then the owner contacts you on Discord if you get accepted.
