Server Plugins for a 1.12 skyfactory Minecraft server

Can someone help me install plugins on my skyfactory server? I’m very new to the server hosting and i don’t know where to start.

Do you host yourself or on a outside machine (renting)?

I rent machine mostly (it’s more practical) for dev server you can find machine for 2$/month) I don’t know how to install version on local host.

Than you should change to one that accept mod and plug-in ( like cauldron), than you just create a plugin files and put your plug-in inside (to configure them, the config files are inside the same plug-in file!)