I found this SMP that keeps it super simple. It is basically vanilla with only minimal add ons and the main rule is do not cheat.
It has simple voice chat so people can talk in game. The Nether and the End are open and it is kind of a race since anyone can go if they get there first.
String duping and TNT and sand duping are allowed. It feels like classic survival where you just do your own thing but you should still watch your back because someone could be watching you.
One Rule Vanilla SMP No Cheating

GG.MINEWIND.NET New Server IPTurnabout SMP Semi Vanilla 18+ Friends

Turnabout is a whitelisted Java survival server for people who are 18 and up. It is semi vanilla so it still feels like normal Minecraft but with some helpful extras.
The server is about three months into Season 2 so there is a newer world for players to explore together. The community is the main focus and there are players from all over the world so it is easier to find people online and make friends.
It is LGBTQ+ friendly and they say they have zero tolerance for hate. They also run events to help people get involved like hide and seek building competitions and some general roleplay.
You can expect quality of life addons like one player sleep mob and player heads and voice chat. The server also has 24 7 uptime so it is ready whenever you want to play.
GG.MINEWIND.NET New Server IPOrigin SMP Tiers PvP Semi-Anarchy

Origin SMP is a survival multiplayer server that just started a new season and it runs on 1.21 for Java and Bedrock.
The whole vibe is story driven and competitive. PvP has a tier system where getting kills moves you up and dying drops you down so fights actually matter.
There is proximity voice chat so people can talk in game and make deals or start beef right on the spot.
There are no land claims so the world is run by trust and politics instead of protection plugins. The world is also finite at 2500 by 2500 blocks so players run into each other a lot.
It is semi anarchy so a lot is allowed but random griefing with no story or purpose can get rolled back to protect the long term SMP stuff.
GG.MINEWIND.NET New Server IPHeadrest SMP Lore Wars And Factions

Headrest SMP is a Paper server on 1.21.11 with an active community and a bunch of quality of life plugins. It uses stuff like Terralith and other structure plugins so exploring feels more interesting.
The vibe is friends first but factions can still fight and start wars. It is a roleplay server with lore and PvP is more of a side thing not the whole point.
There is a safe zone at spawn where people can build shops and hang out. Players can also talk using the simple voice chat mod.
Some of the plugins mentioned are no elytra during combat combatlog and sit. The server also says it runs on a dedicated machine with 20GB of RAM and a 5800x3d CPU to help keep lag down.
GG.MINEWIND.NET New Server IPGOOMB SMP Season 2 Amplified Vanilla

GOOMB SMP is a vanilla survival server running an amplified world and it is in Season 2 right now.
The world got reset about two months ago so lots of players are still building new bases and spreading out as the world border expands. At first people had to live closer together but now there is more room for big plans.
The End has been opened and players have been doing an egg hunt event so everyone can interact and meet each other. People also run shops and do trades and the chat stays active with screenshots and deal talk.
You have to apply first and get approved so it is whitelisted. The rules are simple. Be respectful. No hate speech or NSFW. No griefing. No stealing. No unapproved PvP. Keep things mature and drama free.
GG.MINEWIND.NET New Server IPCrossplay SMP With Real QoL Tweaks

This is an all platform survival server that tries to keep Minecraft feeling normal but way less annoying. It has a small friendly community and it avoids the same old modpack vibe.
I saw that it uses server sided upgrades so you do not need to download anything. It adds stuff like veinminer and treefeller plus proximity voice chat for all platforms. It is meant to make the world feel more alive and easier to play.
There is no store and no crates and no forced economy loop. It is more about exploring and finding cool things.
They also do holiday events and sometimes special weekends where settings change for a couple days. This weekend is double xp.
Griefing is not allowed and there is no world border so you can play your own way. If you want fighting there are separate dimensions for pvp arenas and an anarchy lite style area too.
GG.MINEWIND.NET New Server IPWhitelisted Vanilla SMP For Mature Players

The Eternal Region is a community driven SMP that is whitelisted and made for mature players. It is for people who like teamwork and building cool stuff without the mess you get on public servers.
It sticks close to vanilla but has a few quality of life changes. Phantoms are turned off. Endermen cannot mess up the world. Shulker shells are doubled.
The world border starts small and grows every day. Right now it is at 5000 by 5000. The server also uses Simple Voice Chat so players can talk in game.
They care a lot about anti grief protection and having respectful rules. It sounds like a place for builders redstone players and explorers who want a long term world to invest in. It is for 18 plus players.
GG.MINEWIND.NET New Server IPTerraCraft Tactical Factions With Fair Wars

TerraCraft is a factions server where PvP is on but killing is restricted so fights feel more tactical and less toxic. Griefing is banned too so people can build without losing everything to random destruction.
You can make your own faction or join one that already exists. Players can declare wars and set custom victory conditions and house rules so it stays fair and fun.
It also has simple voice chat plus /spawn and sethome. That makes it easier to build raid and negotiate with other factions.
GG.MINEWIND.NET New Server IPOnomatopoeia SMP Vanilla Plus Chaos

Onomatopoeia SMP is a community focused Java server that sticks close to classic Minecraft but adds a Vanilla plus modded setup with some quality of life stuff. It is inspired by Hermitcraft so the main idea is people actually playing together and making the world feel alive.
Players team up on big builds and community projects then set up shops with a player economy. There is lots of exploring and long term plans so it is not a quick reset kind of place. Pranks and silly moments are part of the vibe and sometimes redstone accidents totally happen.
They are looking for active players who like hanging out and not just grinding alone. Voice chat is encouraged sometimes and applications are open now but gameplay starts in about two weeks so everyone can meet and get ready.
GG.MINEWIND.NET New Server IPActive Crossplay Survival SMP Rens Tavern

Rens Tavern SMP is a survival world that has been up for about a month and it stays active without feeling packed. I saw it usually has around 5 to 10 players on daily so stuff is happening and you can still find space to build.
It runs on 1.21.11 and it supports both Java and Bedrock using Geyser so friends on different platforms can play together. The gameplay is vanilla survival but with a few plugins like Simple Voice Chat and some Vanilla Tweaks.
People build bases and grind and sometimes cause a little chaos. There is a player run economy that is still growing and they have a lore scavenger hunt event planned. The community is 13 plus and they might go semi vanilla later with light economy additions as the server gets bigger.
GG.MINEWIND.NET New Server IP
