Minecraft server hub

Hi,
My name is Raz and I own a minecraft server
As my server is growing, I have been thinking of making multiple servers that you can connect to from one server hub. I know that there is no plugin for it, but if you do know a plugin for it, you can go ahead and send me the link. Just please don't send me outdated plugins! I just wanted to ask how exactly are you able to do this?