Aternos - With Aternos, you can run your own Minecraft server for free.
PaperMC - Paper is a fork of the Spigot server implementation (which is itself a fork of CraftBukkit). Paper strives to bring improved performance, more features, and more APIs for developers to build awesome plugins with.
Server.pro - Free and premium game servers for Minecraft, Terraria and Hytale
Spigot - Simply put, Spigot is it.
Xgamingserver.com - Gaming is something that we take pride in, we created Xgamingserver to make hosting your gameserver fast, easy, at industry best prices, all while providing amazing customer support
Cuberite - A custom Minecraft compatible game server written in C++.