I found a server called MinecraftOffline that runs on Minecraft 1.21.11 and it is built around lifesteal gameplay.
The world is meant to be truly permanent and they say there will never be any resets so your progress sticks around.
It is hosted in Finland so it is tuned for Europe and it runs on solid hardware with an Intel Core i7-8700 64GB DDR4 RAM enterprise HDD storage and a 1 Gbit network.
They also use custom plugins to make the server feel different from normal survival.
1.21.11 Lifesteal No Reset World

GG.MINEWIND.NET New Server IPOverstressed Create SMP Mega Factories

Overstressed SMP is a modded survival server built around Create. It is for players who want to build traps giant bases and huge automated factories.
The server has custom progression using Create and its addons so the experience stays balanced and feels rewarding. There are lots of Create addons too so you can keep finding new ways to automate stuff.
The world uses custom generation with nice riverside areas and mountains that reach the build limit. It also leans hard into building and automation with a big variety of blocks for decorating and making your builds look cool.
Staff are active and respond fast. The server also runs on strong hardware for a smooth experience and you can earn free ranks that give custom commands and abilities.
GG.MINEWIND.NET New Server IPSummit Survival Hard Vanilla Community

This server is called Summit Survival and it feels like old school Minecraft. It was started in 2020 when the owner and their friends just wanted normal survival without tons of confusing plugins.
The world is hard difficulty and mostly vanilla. There are a few simple commands like spawn sethome and skipping the night but not a lot of extra stuff. You can explore and build without land claims so it feels open and shared.
The economy is based on raw gold. Players use it for trading and for a player run shopping district. The hardware is good so mob rates feel normal and the view distance is high with no random building limits.
The community is small and pretty relaxed. Staff do not hover over everyone. They only step in when someone cheats or griefs. There is also an active Discord where people hang out and talk in voice chat a lot.
The rules are mostly about being fair and respectful. No hacking or x ray. Only client mods that do not mess with packets or balance. Do not modify other players builds or entities and always ask before changing someone else’s stuff. Keep a decent distance between bases. Big duplication glitches are not allowed but small single item dupes like rails or string are ok. Hate speech and chat that calls for real life violence is not allowed.
It feels like a place for people who just want a simple survival world to play together for a long time.
GG.MINEWIND.NET New Server IP
