Good Minecraft cracked server if which is the best vanilla?

Looking for Minecraft cracked servers for the first time until I buy a premium account and can play on the premium servers.

It would be best if there's a survival / vanilla server.

The biggest cracked server I know is Twerion.net. I have it too.

Play.guildcraft.org

play.extremecraft.net

play.randomcraft.org

mc.herobrine.org

play.pika-network.net