I found a long term survival realm that stays mostly vanilla but adds a few careful extras so it still feels normal.
It has a custom money system with NPC shops and you can also make your own shops that are protected. People can make towns or group bases with friends and just build and explore at their own pace.
There are optional boosts like extra hearts and movement speed. They also use a gravestone system so your items are protected when you die.
The rules are clear and they actually enforce them. No hacking no griefing no stealing and no unwanted PvP. The community is mostly adults and there are no activity requirements. Discord is required so you can keep up with events and updates.
