I found a hosting option called Stellara Servers and it seems made for people who want a Minecraft server that runs smooth even with mods and plugins.
They talk a lot about fast hardware so you get low lag and stable TPS. It also supports modpacks plus plugins and custom jars so it sounds flexible.
Setup is instant so you can get going fast and the control panel is supposed to be simple to use. They also say support is helpful and responds fast.
There is a 60 percent off first month deal with the code REDDIT60. They also mention helping you pick a plan if you want around 10 to 20 players.
