I found Stellara Servers and it is aimed at people who want reliable Minecraft server hosting with smooth gameplay.
It talks a lot about high performance so you can get low lag and stable TPS even if you use mods and plugins. It also supports modpacks plugins and custom jars.
Setup is instant so you can start playing right away and the control panel is made to be easy to use. They also say the support team is responsive.
There is a discount for your first month with a code. The post also mentions helping people pick a plan for around 10 to 20 players.
