Install a Fabric Snapshot 1.16-pre6 server through the Control Panel (Servers → Select your server → Game servers → Add Game Server → Fabric Snapshot 1.16-pre6)
Honestly, having never used this server host before, I really enjoyed that it was relatively easy to set something up. The control panel made things pretty easy to understand, and if I ever decide to host more servers in the future, I would gladly pick these guys.