Hello aternos team!
I would like to suggest the plugin "chatfeelings".
I completely understand if this is unavailable or cannot be added to the list, but I hope it can.
Here's the links:
Bukkit: https://dev.bukkit.org/bukkit-plugins/chatfeelings/
Spigot: https://www.spigotmc.org/resources/chatfeelings.12987/
Thanks again!
-12k