Install a Parasites - Forge Labs server through the Control Panel (Servers → Select your server → Game servers → Add Game Server → Parasites - Forge Labs)
I am a Twitch affiliate streamer who often streams modded Minecraft. This is a great company and their servers are premium regardless of the price point you pay for, we were able to play modded Minecraft with over 100 loaded mods with no issues. Easy to setup and fast to configure. They can setup your custom server in 24 hours or less and their support team responds in less then 2 hours. You cannot find a better company to host your Minecraft server, plus for the price point it is basically a no brainer. Thank you ScalaCube for enhancing my server experience. 10/10 will host with them for the rest of my Minecraft server days.