Dragonfly Java has a new auction feature! Very simple to use and does not change the survival aspect at all! In fact, this makes it easier to sell your items to friends or buy items that others are selling! All you have to do is do /ah and it opens up the menu for you to sell or buy. Examples are below. If you are confused, there is also /ah help which lists all commands to use. Have fun!
IP to join at 1.16.2: pc.dragonflymc.net
Dragonfly Community Discord: https://discord.gg/EbCPX66