Making an RPG server for friends without mods 1.12.2

Okay so as I said I wanted to make a server with only plug ins running on 1.12.2 and I need some suggestions for plug ins that will work atm the only thing I chose to add is the RacesAndClasses plug in. This will be on a survival world and we will be building a town by choosing a place to put a well/fountain and then building our own homes/shops around it.