I found a small whitelisted Minecraft Lifesteal SMP that is getting opened again. It is being run by Genesis and a friend and they want to grow it with a few more players.
It has simple voice chat and they are looking for friendly active people around 12 to 16. The server has not started yet and they plan to start when they feel like there are enough players.
It is hosted on Aternos and it is meant to be a chill SMP where you can actually know the people you play with.
