I found a Minecraft hosting service called Stellara Servers. It is made for people who want their server to run smooth with mods and plugins and custom jars.
They focus on reliable hardware so the server has low lag and steady TPS. Setup is instant so you can start fast. They also say the control panel is simple and support answers when you need help.
They are running a first month discount and they even say you can ask them what plan makes sense for about 10 to 20 players.
